SQL Server [uniqueidentifier] PK columns are recognized as GUID columns in Powerapps forms.
But unfortunatelly the the SubmitForm function does not support them correctly even so it is possible to get them to the DB with a combination of Patch and GUID functions:
This way all the need form features like Input Validation are lost or have to be implemented manually.
Please implement that Forms/SubmitForm support GUID/SQL server [uniqueidentifier] PK columns as build in.
Thanks
Jan
aka MasterB