Hi @RobiJo,
Thanks for reaching out to the Community!
One possible reason why your ad events may not be syncing is that the Enhanced Conversion API option might not be enabled. It is important for event synchronization. Please make sure to activate the Enhanced Conversion API setting in the Google Ads UI to permit event uploads via the API.
Another potential factor to consider is that HubSpot is only able to attribute contacts to the ads they clicked on once auto-tracking is enabled. Contacts will not be attributed to the ads they clicked on if auto-tracking is disabled. You can find more details in the full article, including steps on how to enable this option.
Kindly inform me if enabling this resolves the issue or if it was already activated, so we can further investigate.
Best,
Diana