I have a task list called "Checklist". When a task is checked off as completed, a workflow runs to send an email notification to a person listed in a column called "Recipient To" in the task list. It is working fine accept when the "Recipient To" column is left blank. I know how to check for a blank value in the workflow, but I wanted to immediately notify that user that the field is blank (before the workflow is kicked off). I have put a validation in place in a Nintex Form that works fine. But, the user would like to check the task as being complete directly in the task list (without editing the item). I tried to use a List Validation, but I am not given the option to use a person field in the formula.
Does anyone have any ideas on how I can accomplish this?
