ISSUEIn Office 365, when running a workflow that creates a task, the workflow might suspend when creating the task and the following error might appear in Details:
Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ArgumentException: AssignedTo at
- Review the Assignee in the Task and ensure the variable is in working order.
- Delete the variable and publish,
- In the workflow, add the variable and publish.