We used the same integratorObjectId (CHECKOUT:3451105837089) for all sync-messages to create/update this deal. I tried downloading these 2 deals from HubSpot using /deals/v1/deal/{dealId} endpoint but I couldn't find any reference for the integratorObjectId to troubleshoot further.
Could you please check why this deal is duplicated? Also, is there any way to get the integratorObjectId that was used to sync a contact/deal?
Few more duplicate deal examples from the same portal.
This seems like an issue on our end but I'll need to do some more digging to be sure. I'll reach out to the team and get back to you when I have more information.