As and Admin, I have experienced an unplanned field deletion that was included in a DataSpace in Gainsight and fields that were heavily relied upon were removed.



Observations:



1) Reports that leveraged any deleted fields were failing (reported immediately by users)



2) Removal of field in question from reports immediately remedied "most" situations (after re-addtion of new field value provided by SF team)



3) Global filters leveraging this value will also have to be updated and values reassigned



4) ANY Report FILTER that leveraged a field that was removed will RETAIN THE LOGIC (A AND B AND...) and the report will still not function if you update and save the logic.



Recovery (unsure of gracefullness)



I have found that if you simply "save a copy" of the report, refresh your report manager screen and then access the original report again it WILL WORK!



Always good to remember to delete the copy after for a tidy interface 🙂