Users cannot view approval form in sharepoint

Question

I have a customized approval workflow. Myself and other Site Collection administrators can view the approval form just fine. When someone who is not a site collection administrator tries to view the approval form in a browser, they get a generic error and the correlation id provided cannot be found in the SharePoint logs.

I also tried elevating privileges, but even having full control does not help. People currently have contribute and approve.

The approval form has not been customized and users can use the approval form from outlook. They cannot go to their tasks and view the form in a browser.

EDIT: If I add a user to Home Owner group, then they can see the approval form. This is NOT ideal. What is unique about this group that allows them to see the approval form and not everyone else?

Answer 1

I ended up fixing mine, by going back, disabling the workflows in the site collection, removing out the Basic Approval in SPD, then re-enabling workflows on the site collection. This recreated the workflow, and has been fine ever since.

Answer 2

Open the site in sharepoint designer, open the "All files" folder and browser to "Workflows" folder and find the one in question. Check if the approval.xsn is checked out, if it the approval file is checked out, check it in using powershell.

Answer 3

I came here with the identical symptoms described in the question. This is what solved it for me:

In the list that generates the task (So the one the approval workflow is triggered from) --> List Settings --> Advanced Settings: Under Item-level permissions --> Read access ensure that Read all items is selected.