When a user tries to merge two organization records, the user receives the error:
Data could not be saved. The UPDATE statement conflicted with the CHECK constraint "CK_ORGANIZATIONPARENTHISTORY_VALIDPARENTCORPID". The conflict occurred in database "7023S25_9e21f147-6c5b-4cf5-87d0-6100a4bbe717", table "dbo.ORGANIZATIONPARENTHISTORY".
This does not occur on all records but does occur for all users.
Download and install the latest version and patch, if applicable.