When trying to run a unmapped transaction job schedule the process will not complete. The only way to complete this by doing it manually by using the start process button.
We are currently evaluating this issue for a fix in a future release.
Steps to Duplicate
Steps to duplicate: 1. In CRM, got to Admin > GL setup 2. Choose System Generated Account System 3. Click Review unmapped transaction messages in the left 4. Click Update unmapped transactions, upper left 5. Under History you can see the transactions that were completed manually, 6. Create a Job Schedule, once the time expires the job will not complete