Snapchat announced in August that they will default to computing conversion metrics based on impression time rather than conversion time. (see here for more context: https://businesshelp.snapchat.com/s/article/reporting-settings?language=en_US).

This change is in-line with industry standards. Because these metrics are generally used to assess the efficacy of ads, reporting based on the impression time of the ad is much more useful than reporting on the time of the actual conversion. 

Accordingly, the Snapchat API gives the option to request metrics with the action_report_time specified (see here: https://developers.snap.com/api/marketing-api/Ads-API/measurement), though this option is not currently supported by Fivetran.

This means that data synced by Fivetran is misaligned with the Snapchat Ads Manager defaults (as well as with general industry practices). It's business-critical for us to have metrics computed from the time of impression, and hope that support for this will be prioritized.