Power Automate Add Field To ContentType (reference Microsoft)
Note the following restrictions on adding a field (column) to a content type using the REST service:
- Site Columns cannot be added to a content type using the REST service.
- You can add a field to a site content type only if the field already exists on the parent content type.
- You can add a field to a content type associated with a list only if the field already exists on the list. To add a completely new field to a list content type, you have to first add it to the list and then add it to the content type in a separate call to the REST service.
Invalid - Must not be used. The value = 0.
Integer - Specifies that the field contains an integer value. The value = 1.
Text - Specifies that the field contains a single line of text. The value = 2.
Note - Specifies that the field contains multiple lines of text. The value = 3.
DateTime - Specifies that the field contains a date and time value or a date-only value. The value = 4.
Counter - Specifies that the field contains a monotonically increasing integer. The value = 5.
Choice - Specifies that the field contains a single value from a set of specified values. The value = 6.
Lookup - Specifies that the field is a lookup field. The value = 7.
Boolean - Specifies that the field contains a Boolean value. The value = 8.
Number - Specifies that the field contains a floating-point number value. The value = 9.
Currency - Specifies that the field contains a currency value. The value = 10.
URL - Specifies that the field contains a URI and an optional description of the URI. The value = 11.
Computed - Specifies that the field is a computed field. The value = 12.
Threading - Specifies that the field indicates the thread for a discussion item in a threaded view of a discussion board. The value = 13.
Guid - Specifies that the field contains a GUID value. The value = 14.
MultiChoice - Specifies that the field contains one or more values from a set of specified values. The value = 15.
GridChoice - Specifies that the field contains rating scale values for a survey list. The value = 16.
Calculated - Specifies that the field is a calculated field. The value = 17.
File - Specifies that the field contains the leaf name of a document as a value. The value = 18.
Attachments - Specifies that the field indicates whether the list item has attachments. The value = 19.
User - Specifies that the field contains one or more users and groups as values. The value = 20.
Recurrence - Specifies that the field indicates whether a meeting in a calendar list recurs. The value = 21.
CrossProjectLink - Specifies that the field contains a link between projects in a Meeting Workspace site. The value = 22.
ModStat - Specifies that the field indicates moderation status. The value = 23.
Error - Specifies that the type of the field was set to an invalid value. The value = 24.
ContentTypeId - Specifies that the field contains a content type identifier as a value. The value = 25.
PageSeparator - Specifies that the field separates questions in a survey list onto multiple pages. The value = 26.
ThreadIndex - Specifies that the field indicates the position of a discussion item in a threaded view of a discussion board. The value = 27.
WorkflowStatus - Specifies that the field indicates the status of a workflow instance on a list item. The value = 28.
AllDayEvent - Specifies that the field indicates whether a meeting in a calendar list is an all-day event. The value = 29.
WorkflowEventType - Specifies that the field contains the most recent event in a workflow instance. The value = 30.
MaxItems - Must not be used. The value = 31.
