Yes you can. The Custom Action has a section near the top called 'User Input', in this section you can use the 'default' box to pre-populate the form. We use this all the time for pre-populating fields with the Project the action was run from or the current user in a resource field.
Pre-Populate Custom Action Fields
Is there a way to pre-populate custom fields in a custom action form?
Please sign in to leave a comment.