When user responded back via SMS to Ack an incident record, the assigned to field was not updated successfully.Issue When user responded back via SMS to Ack an incident record, the assigned to field was not updated successfully. Why WF 'On-Call: Check Assignment Response' took the No path for activity 'Is there an outbound SMS for the message number contained in the response?' due to which it seems the assigned to field was not updated on incident?SymptomsNo [on_call_message_number] record was created ReleaseWashington or aboveCauseAfter investigating the issue and analyze the logs, we found out that the issue is due to the workflow "On-Call: Assign by Acknowledgement" did not had the recent code changes that we have in our OOB instances.- Specifically, the on workflow 'On-Call: Assign by Acknowledgement' was missing below logic (attached screenshot) which exists in latest OOB WF version.typeof vars != "undefined" && varsActivity name: Assign Variables ResolutionAdd the missing logic 'typeof vars != "undefined" && vars' in the 'Assign Variables' activity of the 'On-Call: Assign by Acknowledgement' workflow. This can be done by editing the workflow and adding the logic in the 'Assign Variables' activity. Once added, test the workflow on a subprod instance to verify that the issue is resolved. Or Ensure you are using the latest OOB Workflow version.