Hi David,

I've only ever seen that column disappear, when SP realizes there are too many columns in the list.

Vadim

You are right, Colin.  I should have been more specific.  The value in the workflow column disappears after a while.  For instance I have a column that Nintex created in a list called Approval Workflow.  Once the workflow completes, the value of that column is "Approved" or  "Rejected".  After a while that "Approved" or "Rejected" text goes away.  What causes the text in the column to disappear?

hi David,

I believe that it because of SharePoint workflow auto cleanup job. Default is cleanup after 60 days. I think it's configurable.

Hope that helps.

Vadim