We need to be able to mass add additional information to our contacts and trace the date this info is added. We do not want to update their information, but add to it. We currently have 400 lines and need to add info to these lines 6-10 times a year....

I’m using airtable as a contact database (currently 450 records). This database needs to be mass updated by exported information once a month. Is there a way to mass lookup the differences in one set of data and update the old data with the most rece...