This blog post is a part of a 5 post series consisting of:
Exchange Hybrid Migrations: More Than Just a Pretty Face (Part 1)
Digging Into Hybrid Migration Move Report Data (Part 2)
Troublesho...
Updated Aug 13, 2021
Version 8.0
Blog Post
Hi Mirela_Buru ,
I'm currently migrating mailboxes from tenant to another domain tenant with cross-tenant migration. I have successfully migrated the accounts for 1st tenant batch. Now with same procedure i am trying to migrate the another tenant but getting error of CommunicationErrorTransientException (The server has rejected the client credentials --> The Logon attempt failed. When i test the relationship between source and target tenant it reply as successful. Error is mentioned below.
Migration rate:
Error: CommunicationErrorTransientException: The call to 'net.tcp://vi1pr10mb1758.eurprd10.prod.outlook.com:64340/Microsoft.Exchange.MailboxReplicationService.ProxyService' failed. Error details: The server has rejected the client credentials. --> The server has rejected the client credentials. --> The logon attempt failed. --> The server has rejected the client credentials. --> The server has rejected the client credentials. --> The logon attempt failed.