To mark drawings as obsolete instead of deleting them from the Drawings tool.
Procore's "Drawing Obsolete" functionality allows users to signify that certain drawings in their project are out of date or otherwise not relevant to the project's current set.
Navigate to your project's Drawings tool.
Either click Info next to the drawing you would like to mark as obsolete and then click Edit under 'General Information', or click the blue Edit button to the left of the drawing in the drawings list page.
On the edit page, scroll down to the 'General Information' section, and click the checkbox next to Mark Obsolete.