Domain Move fails in the step of removing email address:
A value in the request is invalid."Update Domain: Directory Operation Error (ConstraintViolation): 000021C8: AtrErr: DSID-03200E9E, #1:
0: 000021C8: DSID-03200E9E, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 90290 (userPrincipalName)
''SynchronizedUPNForManagerUsers'' feature is not enabled on the Source Tenant
Manually correct the UPN for the failed users, then enable the following feature on the Source Tenant: SynchronizedUPNForManagerUsers.
