We have around 1500 projects that are completed but still active and want to mark them as inactive. Is there an easy way to do this in bulk?
There is no out of the box solution for inactivating projects in bulk. You could come up with custom solution via process utilizing GEL/XOG for looping through those projects and updating it via XOG. You also could create a process using system action that updates Active attribute based on custom attributes that you should set which will trigger your process, something like is_complete (Boolean type).