Once we upgraded our CE from version 8.2 On-prem to 9.1 On-prem, our existing Background Workflows fail immediately when triggered with error “Exception: Event failed due to an exception”. We tried stopping and restarting the MS Asynchronous Processing Service on the application server. Ideas?
Hi Allison.
Check the Application log in Event viewer for any errors while reproducing the error(triggering the workflow) on the server(s) for the deployment.
Unhandled exceptions should be written there which foretell more on what the issue is.
If needed you also have the option to enabled Tracing on the servers that depending on trace level(default: Error) which should capture this in full.
Here is a guide to enable this https://learn.microsoft.com/en-us/dynamics365/customerengagement/on-premises/deploy/monitor-and-troubleshoot-dynamics-365?view=op-9-1
Keep in mind that these trace files can grow quite fast(once again, depending on trace level) so be sure to monitor the directory to not fill the disk and remember to turn in off once you've captured the real exception.
I suggest you post the error in in this thread even thou you might directly see what's causing it and how you approached in resolving it as it may help others in the same situation.
Hope this helps.
Philip
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