Incomplete migration of a users mailbox and Missing session string , Code: ea10, info: null

  • 7019625
  • 31-Oct-2014
  • 07-Aug-2017


Migration ToolKit


A user's migration is incomplete and the error "Missing session string , Code: ea10, info: null" appears in the log.


It was found that the user had 4800+ messages in the inbox. The SOAP protocol appears to have issues with large folders ~5000 message.

Moving the messages into folders, in this case sorted by year, solved the issue.

Additional Information

This article was originally published in the GWAVA knowledgebase as article ID 2400.