Change record status: 
Project: 
Introduced in branch: 
8.x
Description: 
  • The form IDs of Field UI's "Field edit" and "Field instance edit" forms changed. Existing hook_form_alter() and hook_form_FORM_ID_alter() implementations relying on those form IDs need to be updated for the new IDs.

    Notably, 'field_ui_field_edit_form' was the ID of the "Field instance edit" form in Drupal 7, and is now the ID of the "Field edit" form in Drupal 8.

  • Additionally, the URL of the "Field edit", "Field instance edit", "Field widget edit" forms changed:
Drupal 7 Drupal 8
"Field instance edit" form
Form ID field_ui_field_edit_form field_ui_field_instance_edit_form
Path: [bundle_admin_path]/fields... /[field_name] /[entity_type].[bundle].[field_name]
"Field edit" form
Form ID: field_ui_field_settings_form field_ui_field_edit_form
Path: [bundle_admin_path]/fields... /[field_name]/field-settings /[entity_type].[bundle].[field_name]/field-settings
"Field widget edit" form
Form ID: field_ui_widget_type_form (unchanged)
Path: [bundle_admin_path]/fields... /[field_name]/widget-type /[entity_type].[bundle].[field_name]/widget-type
Impacts: 
Module developers