We have multiple CIDs that we are attempting to build campaigns into via BulkUpload, and in one case we're getting an error
"No header row was found for this spreadsheet" (MCC: 730-277-0792 CID: 316-467-9480) and in another case, using a script that reads (from Google Drive) and uploads the same exact csv file, we get no error
(MCC: 839-438-5313 CID: 221-354-2158). The only difference here is MCC and CID here.
Why is this inconsistency occurring? Was there an update made on your side that may have triggered this? Please help, this is happening for several campaigns but not for others