The resolve long-running operations job runs automatically to complete operations that time out.
When operations, such as merge and unmerge, take longer than expected to complete, they can time out. When an operation times out, the resolve long-running operations job runs automatically and completes the operation. You can view the details of these jobs on the My Jobs page.
MDM SaaS limits the number of resolve long-running operations jobs that can run concurrently on a POD. If the number of concurrent jobs reaches the limit on a POD, the operation fails. You can perform the operation again later.