The Attach Metadata / Do not Attach Metadata job setting is a new Flatly feature.

If Attach Metadata is selected, Flatly will upload a companion file, alongside your flat file, to your Data Destination, every time your job runs.

This companion file contains helpful information such as Cell Count, API Limit Used / Remaining associated with your Data Source.

In the future, this file will contain even more information to help inform Flatly users understand what occurred, behind the scenes, when a job ran.