MSCRM 4.0 Error: Invalid Action

Published on 25 March 2008 • Estimated reading time: 1 minutes

So I had a great surprise this morning walking into the office—MSCRM 4.0 greeted me with "Invalid Action: The Selected Action Was Not Valid." This was after a long weekend with no activity or system changes. First, I checked if it was just my machine—nope, everyone else was affected. Next, I logged onto the server and opened MSCRM again, but the issue persisted. IIS reset? Same problem. Checked services? Still nothing. Verified SQL was up and the database was fine—yep.

Then, someone mentioned an issue with MOSS: they couldn’t edit a document. I wondered if it was related, so I logged into the SQL box and checked disk space—and (DUM DUM DUM!!) there was no space left on the disk drive for the databases. A quick cleanup of the transaction logs and—voilà—the system was back up and running perfectly.