feat: show nested fields in named tabs as separate columns in the list view (#12530)

### What

Continuation of #7355 by extending the functionality to named tabs.

Updates `flattenFields` to hoist nested fields inside named tabs to the
top-level field array when `moveSubFieldsToTop` is enabled.

Also fixes an issue where group fields with custom cells were being
flattened out.

Now, group fields with a custom cell components remain available as
top-level columns.

Fixes #12563

packages/payload/src/utilities/flattenTopLevelFields.spec.ts

@@ -49,10 +49,10 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      expect(result).toHaveLength(1)
-      expect(result[0].name).toBe('slug')
-      expect(result[0].accessor).toBe('meta-slug')
-      expect(result[0].labelWithPrefix).toBe('Meta Info > Slug')
+      expect(result).toHaveLength(2)
+      expect(result[1].name).toBe('slug')
+      expect(result[1].accessor).toBe('meta-slug')
+      expect(result[1].labelWithPrefix).toBe('Meta Info > Slug')
     })
 
     it('should NOT flatten fields inside group without moveSubFieldsToTop', () => {
@@ -109,10 +109,10 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      expect(hoisted).toHaveLength(1)
-      expect(hoisted[0].name).toBe('deep')
-      expect(hoisted[0].accessor).toBe('outer-inner-deep')
-      expect(hoisted[0].labelWithPrefix).toBe('Outer > Inner > Deep Field')
+      expect(hoisted).toHaveLength(3)
+      expect(hoisted[2].name).toBe('deep')
+      expect(hoisted[2].accessor).toBe('outer-inner-deep')
+      expect(hoisted[2].labelWithPrefix).toBe('Outer > Inner > Deep Field')
 
       const nonHoisted = flattenFields(fields)
 
@@ -142,14 +142,15 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      // Should keep the group as a single top-level field
-      expect(withExtract).toHaveLength(1)
-      expect(withExtract[0].type).toBe('text')
-      expect(withExtract[0].accessor).toBeUndefined()
-      expect(withExtract[0].labelWithPrefix).toBeUndefined()
+      // Should include top level group and its nested field as a top-level field
+      expect(withExtract).toHaveLength(2)
+      expect(withExtract[1].type).toBe('text')
+      expect(withExtract[1].accessor).toBeUndefined()
+      expect(withExtract[1].labelWithPrefix).toBeUndefined()
 
       const withoutExtract = flattenFields(fields)
 
+      // Should return the group as a top-level item, not the inner field
       expect(withoutExtract).toHaveLength(1)
       expect(withoutExtract[0].type).toBe('group')
       expect(withoutExtract[0].accessor).toBeUndefined()
@@ -195,10 +196,10 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      expect(hoistedResult).toHaveLength(1)
-      expect(hoistedResult[0].name).toBe('nestedField')
-      expect(hoistedResult[0].accessor).toBe('namedGroup-nestedField')
-      expect(hoistedResult[0].labelWithPrefix).toBe('Named Group > Nested Field')
+      expect(hoistedResult).toHaveLength(5)
+      expect(hoistedResult[4].name).toBe('nestedField')
+      expect(hoistedResult[4].accessor).toBe('namedGroup-nestedField')
+      expect(hoistedResult[4].labelWithPrefix).toBe('Named Group > Nested Field')
 
       const nonHoistedResult = flattenFields(fields)
 
@@ -432,9 +433,9 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      expect(result).toHaveLength(1)
-      expect(result[0].accessor).toBe('groupInRow-nestedInRowGroup')
-      expect(result[0].labelWithPrefix).toBe('Group In Row > Nested In Row Group')
+      expect(result).toHaveLength(2)
+      expect(result[1].accessor).toBe('groupInRow-nestedInRowGroup')
+      expect(result[1].labelWithPrefix).toBe('Group In Row > Nested In Row Group')
     })
 
     it('should hoist named group fields inside collapsibles', () => {
@@ -464,15 +465,114 @@ describe('flattenFields', () => {
         i18n,
       })
 
-      expect(result).toHaveLength(1)
-      expect(result[0].accessor).toBe('groupInCollapsible-nestedInCollapsibleGroup')
-      expect(result[0].labelWithPrefix).toBe('Group In Collapsible > Nested In Collapsible Group')
+      expect(result).toHaveLength(2)
+      expect(result[1].accessor).toBe('groupInCollapsible-nestedInCollapsibleGroup')
+      expect(result[1].labelWithPrefix).toBe('Group In Collapsible > Nested In Collapsible Group')
     })
   })
 
   describe('tab integration', () => {
-    it('should hoist named group fields inside tabs when moveSubFieldsToTop is true', () => {
-      const fields: ClientField[] = [
+    const namedTabFields: ClientField[] = [
+      {
+        type: 'tabs',
+        tabs: [
+          {
+            label: 'Tab One',
+            name: 'tabOne',
+            fields: [
+              {
+                type: 'array',
+                name: 'array',
+                fields: [
+                  {
+                    type: 'text',
+                    name: 'text',
+                  },
+                ],
+              },
+              {
+                type: 'row',
+                fields: [
+                  {
+                    name: 'arrayInRow',
+                    type: 'array',
+                    fields: [
+                      {
+                        name: 'textInArrayInRow',
+                        type: 'text',
+                      },
+                    ],
+                  },
+                ],
+              },
+              {
+                type: 'text',
+                name: 'textInTab',
+                label: 'Text In Tab',
+              },
+              {
+                type: 'group',
+                name: 'groupInTab',
+                label: 'Group In Tab',
+                fields: [
+                  {
+                    type: 'text',
+                    name: 'nestedTextInTabGroup',
+                    label: 'Nested Text In Tab Group',
+                  },
+                ],
+              },
+            ],
+          },
+        ],
+      },
+    ]
+
+    const unnamedTabFields: ClientField[] = [
+      {
+        type: 'tabs',
+        tabs: [
+          {
+            label: 'Tab One',
+            fields: [
+              {
+                type: 'array',
+                name: 'array',
+                fields: [
+                  {
+                    type: 'text',
+                    name: 'text',
+                  },
+                ],
+              },
+              {
+                type: 'row',
+                fields: [
+                  {
+                    name: 'arrayInRow',
+                    type: 'array',
+                    fields: [
+                      {
+                        name: 'textInArrayInRow',
+                        type: 'text',
+                      },
+                    ],
+                  },
+                ],
+              },
+              {
+                type: 'text',
+                name: 'textInTab',
+                label: 'Text In Tab',
+              },
+            ],
+          },
+        ],
+      },
+    ]
+
+    it('should hoist named group fields inside unamed tabs when moveSubFieldsToTop is true', () => {
+      const unnamedTabWithNamedGroup: ClientField[] = [
         {
           type: 'tabs',
           tabs: [
@@ -497,14 +597,107 @@ describe('flattenFields', () => {
         },
       ]
 
-      const result = flattenFields(fields, {
+      const result = flattenFields(unnamedTabWithNamedGroup, {
         moveSubFieldsToTop: true,
         i18n,
       })
 
+      expect(result).toHaveLength(2)
+      expect(result[1].accessor).toBe('groupInTab-nestedInTabGroup')
+      expect(result[1].labelWithPrefix).toBe('Group In Tab > Nested In Tab Group')
+    })
+
+    it('should hoist fields inside unnamed groups inside unnamed tabs when moveSubFieldsToTop is true', () => {
+      const unnamedTabWithUnnamedGroup: ClientField[] = [
+        {
+          type: 'tabs',
+          tabs: [
+            {
+              label: 'Tab One',
+              fields: [
+                {
+                  type: 'group',
+                  label: 'Unnamed Group In Tab',
+                  fields: [
+                    {
+                      type: 'text',
+                      name: 'nestedInUnnamedGroup',
+                      label: 'Nested In Unnamed Group',
+                    },
+                  ],
+                },
+              ],
+            },
+          ],
+        },
+      ]
+
+      const defaultResult = flattenFields(unnamedTabWithUnnamedGroup)
+
+      expect(defaultResult).toHaveLength(1)
+      expect(defaultResult[0].type).toBe('group')
+      expect(defaultResult[0].label).toBe('Unnamed Group In Tab')
+      expect('accessor' in defaultResult[0]).toBe(false)
+      expect('labelWithPrefix' in defaultResult[0]).toBe(false)
+
+      const hoistedResult = flattenFields(unnamedTabWithUnnamedGroup, {
+        moveSubFieldsToTop: true,
+        i18n,
+      })
+
+      expect(hoistedResult).toHaveLength(2)
+      const hoistedField = hoistedResult[1]
+      expect(hoistedField.name).toBe('nestedInUnnamedGroup')
+      expect(hoistedField.accessor).toBeUndefined()
+      expect(hoistedField.labelWithPrefix).toBeUndefined()
+    })
+
+    it('should properly hoist fields inside named tabs when moveSubFieldsToTop is true', () => {
+      const result = flattenFields(namedTabFields, {
+        moveSubFieldsToTop: true,
+        i18n,
+      })
+
+      expect(result).toHaveLength(5)
+      expect(result[0].accessor).toBe('tabOne-array')
+      expect(result[0].labelWithPrefix).toBe('Tab One > array')
+      expect(result[1].accessor).toBe('tabOne-arrayInRow')
+      expect(result[1].labelWithPrefix).toBe('Tab One > arrayInRow')
+      expect(result[2].accessor).toBe('tabOne-textInTab')
+      expect(result[2].labelWithPrefix).toBe('Tab One > Text In Tab')
+      expect(result[4].accessor).toBe('tabOne-groupInTab-nestedTextInTabGroup')
+      expect(result[4].labelWithPrefix).toBe('Tab One > Group In Tab > Nested Text In Tab Group')
+    })
+
+    it('should NOT hoist fields inside named tabs when moveSubFieldsToTop is false', () => {
+      const result = flattenFields(namedTabFields)
+
+      // We expect one top-level field: the tabs container itself is *not* hoisted
       expect(result).toHaveLength(1)
-      expect(result[0].accessor).toBe('groupInTab-nestedInTabGroup')
-      expect(result[0].labelWithPrefix).toBe('Group In Tab > Nested In Tab Group')
+
+      const tabField = result[0]
+      expect(tabField.type).toBe('tab')
+
+      // Confirm nested fields are NOT hoisted: no accessors or labelWithPrefix at the top level
+      expect('accessor' in tabField).toBe(false)
+      expect('labelWithPrefix' in tabField).toBe(false)
+    })
+
+    it('should hoist fields inside unnamed tabs regardless of moveSubFieldsToTop', () => {
+      const resultDefault = flattenFields(unnamedTabFields)
+      const resultHoisted = flattenFields(unnamedTabFields, {
+        moveSubFieldsToTop: true,
+        i18n,
+      })
+
+      expect(resultDefault).toHaveLength(3)
+      expect(resultHoisted).toHaveLength(3)
+      expect(resultDefault).toEqual(resultHoisted)
+
+      for (const field of resultDefault) {
+        expect(field.accessor).toBeUndefined()
+        expect(field.labelWithPrefix).toBeUndefined()
+      }
     })
   })
 })

packages/payload/src/utilities/flattenTopLevelFields.ts

@@ -50,7 +50,7 @@ type FlattenFieldsOptions = {
    */
   labelPrefix?: string
   /**
-   * If true, nested fields inside `group` fields will be lifted to the top level
+   * If true, nested fields inside `group` & `tabs` fields will be lifted to the top level
    * and given contextual `accessor` and `labelWithPrefix` values.
    * Default: false.
    */
@@ -85,48 +85,93 @@ function flattenFields<TField extends ClientField | Field>(
   } = normalizedOptions
 
   return fields.reduce<FlattenedField<TField>[]>((acc, field) => {
-    if (fieldHasSubFields(field)) {
-      if (field.type === 'group') {
-        if (moveSubFieldsToTop && 'fields' in field) {
-          const isNamedGroup = 'name' in field && typeof field.name === 'string' && !!field.name
+    if (field.type === 'group' && 'fields' in field) {
+      if (moveSubFieldsToTop) {
+        const isNamedGroup = 'name' in field && typeof field.name === 'string' && !!field.name
+        const groupName = 'name' in field ? field.name : undefined
 
-          const translatedLabel =
-            'label' in field && field.label && i18n
-              ? getTranslation(field.label as string, i18n)
-              : undefined
+        const translatedLabel =
+          'label' in field && field.label && i18n
+            ? getTranslation(field.label as string, i18n)
+            : undefined
 
-          const labelWithPrefix =
-            isNamedGroup && labelPrefix && translatedLabel
-              ? `${labelPrefix} > ${translatedLabel}`
-              : (labelPrefix ?? translatedLabel)
+        const labelWithPrefix = labelPrefix
+          ? `${labelPrefix} > ${translatedLabel ?? groupName}`
+          : (translatedLabel ?? groupName)
 
-          const nameWithPrefix =
-            isNamedGroup && field.name
-              ? pathPrefix
-                ? `${pathPrefix}-${field.name as string}`
-                : (field.name as string)
-              : pathPrefix
+        const nameWithPrefix =
+          'name' in field && field.name
+            ? pathPrefix
+              ? `${pathPrefix}-${field.name}`
+              : field.name
+            : pathPrefix
 
-          acc.push(
-            ...flattenFields(field.fields as TField[], {
-              i18n,
-              keepPresentationalFields,
-              labelPrefix: isNamedGroup ? labelWithPrefix : labelPrefix,
-              moveSubFieldsToTop,
-              pathPrefix: isNamedGroup ? nameWithPrefix : pathPrefix,
-            }),
-          )
-        } else {
-          // Just keep the group as-is
-          acc.push(field as FlattenedField<TField>)
-        }
-      } else if (['collapsible', 'row'].includes(field.type)) {
-        // Recurse into row and collapsible
-        acc.push(...flattenFields(field.fields as TField[], options))
+        acc.push(
+          // Need to include the top-level group field when hoisting its subfields,
+          // so that `buildColumnState` can detect and render a column if the group
+          // has a custom admin Cell component defined in its configuration.
+          // See: packages/ui/src/providers/TableColumns/buildColumnState/index.tsx
+          field as FlattenedField<TField>,
+          ...flattenFields(field.fields as TField[], {
+            i18n,
+            keepPresentationalFields,
+            labelPrefix: isNamedGroup ? labelWithPrefix : labelPrefix,
+            moveSubFieldsToTop,
+            pathPrefix: isNamedGroup ? nameWithPrefix : pathPrefix,
+          }),
+        )
       } else {
-        // Do not hoist fields from arrays & blocks
+        // Hoisting diabled - keep as top level field
         acc.push(field as FlattenedField<TField>)
       }
+    } else if (field.type === 'tabs' && 'tabs' in field) {
+      return [
+        ...acc,
+        ...field.tabs.reduce<FlattenedField<TField>[]>((tabFields, tab: TabType<TField>) => {
+          if (tabHasName(tab)) {
+            if (moveSubFieldsToTop) {
+              const translatedLabel =
+                'label' in tab && tab.label && i18n ? getTranslation(tab.label, i18n) : undefined
+
+              const labelWithPrefixForTab = labelPrefix
+                ? `${labelPrefix} > ${translatedLabel ?? tab.name}`
+                : (translatedLabel ?? tab.name)
+
+              const pathPrefixForTab = tab.name
+                ? pathPrefix
+                  ? `${pathPrefix}-${tab.name}`
+                  : tab.name
+                : pathPrefix
+
+              return [
+                ...tabFields,
+                ...flattenFields(tab.fields as TField[], {
+                  i18n,
+                  keepPresentationalFields,
+                  labelPrefix: labelWithPrefixForTab,
+                  moveSubFieldsToTop,
+                  pathPrefix: pathPrefixForTab,
+                }),
+              ]
+            } else {
+              // Named tab, hoisting disabled: keep as top-level field
+              return [
+                ...tabFields,
+                {
+                  ...tab,
+                  type: 'tab',
+                } as unknown as FlattenedField<TField>,
+              ]
+            }
+          } else {
+            // Unnamed tab: always hoist its fields
+            return [...tabFields, ...flattenFields<TField>(tab.fields as TField[], options)]
+          }
+        }, []),
+      ]
+    } else if (fieldHasSubFields(field) && ['collapsible', 'row'].includes(field.type)) {
+      // Recurse into row and collapsible
+      acc.push(...flattenFields(field.fields as TField[], options))
     } else if (
       fieldAffectsData(field) ||
       (keepPresentationalFields && fieldIsPresentationalOnly(field))
@@ -148,30 +193,11 @@ function flattenFields<TField extends ClientField | Field>(
         ...(moveSubFieldsToTop &&
           isHoistingFromGroup && {
             accessor: pathPrefix && name ? `${pathPrefix}-${name}` : (name ?? ''),
-            labelWithPrefix:
-              labelPrefix && translatedLabel
-                ? `${labelPrefix} > ${translatedLabel}`
-                : (labelPrefix ?? translatedLabel),
+            labelWithPrefix: labelPrefix
+              ? `${labelPrefix} > ${translatedLabel ?? name}`
+              : (translatedLabel ?? name),
           }),
       })
-    } else if (field.type === 'tabs' && 'tabs' in field) {
-      return [
-        ...acc,
-        ...field.tabs.reduce<FlattenedField<TField>[]>((tabFields, tab: TabType<TField>) => {
-          if (tabHasName(tab)) {
-            return [
-              ...tabFields,
-              {
-                ...tab,
-                type: 'tab',
-                ...(moveSubFieldsToTop && { labelPrefix }),
-              } as unknown as FlattenedField<TField>,
-            ]
-          } else {
-            return [...tabFields, ...flattenFields<TField>(tab.fields as TField[], options)]
-          }
-        }, []),
-      ]
     }
 
     return acc

packages/ui/src/providers/TableColumns/buildColumnState/index.tsx

@@ -139,6 +139,17 @@ export const buildColumnState = (args: BuildColumnStateArgs): Column[] => {
       return fAccessor === accessor
     })
 
+    const hasCustomCell =
+      serverField?.admin &&
+      'components' in serverField.admin &&
+      serverField.admin.components &&
+      'Cell' in serverField.admin.components &&
+      serverField.admin.components.Cell
+
+    if (serverField && serverField.type === 'group' && !hasCustomCell) {
+      return acc // skip any group without a custom cell
+    }
+
     const columnPreference = columnPreferences?.find(
       (preference) => clientField && 'name' in clientField && preference.accessor === accessor,
     )

test/admin/collections/Posts.ts

@@ -133,7 +133,7 @@ export const Posts: CollectionConfig = {
       type: 'text',
     },
     {
-      name: 'group',
+      name: 'namedGroup',
       type: 'group',
       fields: [
         {
@@ -142,6 +142,54 @@ export const Posts: CollectionConfig = {
         },
       ],
     },
+    {
+      type: 'group',
+      label: 'Unnamed group',
+      fields: [
+        {
+          name: 'textFieldInUnnamedGroup',
+          type: 'text',
+        },
+      ],
+    },
+    {
+      name: 'groupWithCustomCell',
+      type: 'group',
+      admin: {
+        components: {
+          Cell: '/components/CustomGroupCell/index.js#CustomGroupCell',
+        },
+      },
+      fields: [
+        {
+          name: 'nestedTextFieldInGroupWithCustomCell',
+          type: 'text',
+        },
+      ],
+    },
+    {
+      type: 'tabs',
+      tabs: [
+        {
+          name: 'namedTab',
+          fields: [
+            {
+              name: 'nestedTextFieldInNamedTab',
+              type: 'text',
+            },
+          ],
+        },
+        {
+          label: 'unnamedTab',
+          fields: [
+            {
+              name: 'nestedTextFieldInUnnamedTab',
+              type: 'text',
+            },
+          ],
+        },
+      ],
+    },
     {
       name: 'relationship',
       type: 'relationship',

test/admin/components/CustomGroupCell/index.tsx

@@ -0,0 +1,9 @@
+'use client'
+
+import type { DefaultCellComponentProps } from 'payload'
+
+import React from 'react'
+
+export const CustomGroupCell: React.FC<DefaultCellComponentProps> = (props) => {
+  return <div>{`Custom group cell: ${props?.rowData?.title || 'No data'}`}</div>
+}

test/admin/e2e/list-view/e2e.spec.ts

@@ -955,24 +955,64 @@ describe('List View', () => {
       expect(page.url()).not.toMatch(/columns=/)
     })
 
-    test('should render field in group as column', async () => {
-      await createPost({ group: { someTextField: 'nested group text field' } })
+    test('should render nested field in named group as separate column', async () => {
+      await createPost({ namedGroup: { someTextField: 'nested group text field' } })
       await page.goto(postsUrl.list)
       await openColumnControls(page)
       await page
         .locator('.column-selector .column-selector__column', {
-          hasText: exactText('Group > Some Text Field'),
+          hasText: exactText('Named Group > Some Text Field'),
         })
         .click()
-      await expect(page.locator('.row-1 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-1 .cell-namedGroup-someTextField')).toHaveText(
         'nested group text field',
       )
     })
 
-    test('should render top-level and group field with same name in separate columns', async () => {
+    test('should render nested field in unnamed group as separate column', async () => {
+      await createPost({ textFieldInUnnamedGroup: 'nested text in unnamed group' })
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await page
+        .locator('.column-selector .column-selector__column', {
+          hasText: exactText('Text Field In Unnamed Group'),
+        })
+        .click()
+      await expect(page.locator('.row-1 .cell-textFieldInUnnamedGroup')).toHaveText(
+        'nested text in unnamed group',
+      )
+    })
+
+    test('should not render group field as top level column when custom cell is not defined', async () => {
+      await createPost({ namedGroup: { someTextField: 'nested group text field' } })
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await expect(
+        page.locator('.column-selector .column-selector__column', {
+          hasText: exactText('Named Group'),
+        }),
+      ).toBeHidden()
+    })
+
+    test('should render group field as top level column when custom cell is defined', async () => {
+      await createPost({
+        groupWithCustomCell: {
+          nestedTextFieldInGroupWithCustomCell: 'nested group text field in group with custom cell',
+        },
+      })
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await expect(
+        page.locator('.column-selector .column-selector__column', {
+          hasText: exactText('Group With Custom Cell'),
+        }),
+      ).toBeVisible()
+    })
+
+    test('should render top-level field and group field with same name in separate columns', async () => {
       await createPost({
         someTextField: 'top-level text field',
-        group: { someTextField: 'nested group text field' },
+        namedGroup: { someTextField: 'nested group text field' },
       })
 
       await page.goto(postsUrl.list)
@@ -988,7 +1028,7 @@ describe('List View', () => {
       // Enable group column
       await page
         .locator('.column-selector .column-selector__column', {
-          hasText: exactText('Group > Some Text Field'),
+          hasText: exactText('Named Group > Some Text Field'),
         })
         .click()
 
@@ -996,11 +1036,39 @@ describe('List View', () => {
       await expect(page.locator('.row-1 .cell-someTextField')).toHaveText('top-level text field')
 
       // Expect nested group cell
-      await expect(page.locator('.row-1 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-1 .cell-namedGroup-someTextField')).toHaveText(
         'nested group text field',
       )
     })
 
+    test('should render nested field in named tab as separate column', async () => {
+      await createPost({ namedTab: { nestedTextFieldInNamedTab: 'nested text in named tab' } })
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await page
+        .locator('.column-selector .column-selector__column', {
+          hasText: exactText('Named Tab > Nested Text Field In Named Tab'),
+        })
+        .click()
+      await expect(page.locator('.row-1 .cell-namedTab-nestedTextFieldInNamedTab')).toHaveText(
+        'nested text in named tab',
+      )
+    })
+
+    test('should render nested field in unnamed tab as separate column', async () => {
+      await createPost({ nestedTextFieldInUnnamedTab: 'nested text in unnamed tab' })
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await page
+        .locator('.column-selector .column-selector__column', {
+          hasText: exactText('Nested Text Field In Unnamed Tab'),
+        })
+        .click()
+      await expect(page.locator('.row-1 .cell-nestedTextFieldInUnnamedTab')).toHaveText(
+        'nested text in unnamed tab',
+      )
+    })
+
     test('should drag to reorder columns and save to preferences', async () => {
       await reorderColumns(page, { fromColumn: 'Number', toColumn: 'ID' })
 
@@ -1308,7 +1376,11 @@ describe('List View', () => {
     beforeEach(async () => {
       // delete all posts created by the seed
       await deleteAllPosts()
-      await createPost({ number: 1, group: { someTextField: 'nested group text field' } })
+      await createPost({
+        number: 1,
+        namedGroup: { someTextField: 'nested group text field' },
+        namedTab: { nestedTextFieldInNamedTab: 'nested text in named tab' },
+      })
       await createPost({ number: 2 })
     })
 
@@ -1335,33 +1407,69 @@ describe('List View', () => {
       await openColumnControls(page)
       await page
         .locator('.column-selector .column-selector__column', {
-          hasText: exactText('Group > Some Text Field'),
+          hasText: exactText('Named Group > Some Text Field'),
         })
         .click()
-      const upChevron = page.locator('#heading-group-someTextField .sort-column__asc')
-      const downChevron = page.locator('#heading-group-someTextField .sort-column__desc')
+      const upChevron = page.locator('#heading-namedGroup-someTextField .sort-column__asc')
+      const downChevron = page.locator('#heading-namedGroup-someTextField .sort-column__desc')
 
       await upChevron.click()
-      await page.waitForURL(/sort=group.someTextField/)
+      await page.waitForURL(/sort=namedGroup.someTextField/)
 
-      await expect(page.locator('.row-1 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-1 .cell-namedGroup-someTextField')).toHaveText(
         '<No Some Text Field>',
       )
-      await expect(page.locator('.row-2 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-2 .cell-namedGroup-someTextField')).toHaveText(
         'nested group text field',
       )
 
       await downChevron.click()
-      await page.waitForURL(/sort=-group.someTextField/)
+      await page.waitForURL(/sort=-namedGroup.someTextField/)
 
-      await expect(page.locator('.row-1 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-1 .cell-namedGroup-someTextField')).toHaveText(
         'nested group text field',
       )
-      await expect(page.locator('.row-2 .cell-group-someTextField')).toHaveText(
+      await expect(page.locator('.row-2 .cell-namedGroup-someTextField')).toHaveText(
         '<No Some Text Field>',
       )
     })
 
+    test('should allow sorting by nested field within tab in separate column', async () => {
+      await page.goto(postsUrl.list)
+      await openColumnControls(page)
+      await page
+        .locator('.column-selector .column-selector__column', {
+          hasText: exactText('Named Tab > Nested Text Field In Named Tab'),
+        })
+        .click()
+      const upChevron = page.locator(
+        '#heading-namedTab-nestedTextFieldInNamedTab .sort-column__asc',
+      )
+      const downChevron = page.locator(
+        '#heading-namedTab-nestedTextFieldInNamedTab .sort-column__desc',
+      )
+
+      await upChevron.click()
+      await page.waitForURL(/sort=namedTab.nestedTextFieldInNamedTab/)
+
+      await expect(page.locator('.row-1 .cell-namedTab-nestedTextFieldInNamedTab')).toHaveText(
+        '<No Nested Text Field In Named Tab>',
+      )
+      await expect(page.locator('.row-2 .cell-namedTab-nestedTextFieldInNamedTab')).toHaveText(
+        'nested text in named tab',
+      )
+
+      await downChevron.click()
+      await page.waitForURL(/sort=-namedTab.nestedTextFieldInNamedTab/)
+
+      await expect(page.locator('.row-1 .cell-namedTab-nestedTextFieldInNamedTab')).toHaveText(
+        'nested text in named tab',
+      )
+      await expect(page.locator('.row-2 .cell-namedTab-nestedTextFieldInNamedTab')).toHaveText(
+        '<No Nested Text Field In Named Tab>',
+      )
+    })
+
     test('should sort with existing filters', async () => {
       await page.goto(postsUrl.list)
 

test/admin/payload-types.ts

@@ -238,9 +238,17 @@ export interface Post {
       }[]
     | null;
   someTextField?: string | null;
-  group?: {
+  namedGroup?: {
     someTextField?: string | null;
   };
+  textFieldInUnnamedGroup?: string | null;
+  groupWithCustomCell?: {
+    nestedTextFieldInGroupWithCustomCell?: string | null;
+  };
+  namedTab?: {
+    nestedTextFieldInNamedTab?: string | null;
+  };
+  nestedTextFieldInUnnamedTab?: string | null;
   relationship?: (string | null) | Post;
   users?: (string | null) | User;
   customCell?: string | null;
@@ -700,11 +708,23 @@ export interface PostsSelect<T extends boolean = true> {
   number?: T;
   richText?: T;
   someTextField?: T;
-  group?:
+  namedGroup?:
     | T
     | {
         someTextField?: T;
       };
+  textFieldInUnnamedGroup?: T;
+  groupWithCustomCell?:
+    | T
+    | {
+        nestedTextFieldInGroupWithCustomCell?: T;
+      };
+  namedTab?:
+    | T
+    | {
+        nestedTextFieldInNamedTab?: T;
+      };
+  nestedTextFieldInUnnamedTab?: T;
   relationship?: T;
   users?: T;
   customCell?: T;