Hey andrewdonnelly,
I don't know if you use a third party for click or install attribution, such as AppsFlyer or Adjust. If you're using one of them, you can connect them to Braze through the technology partner page and send install attribution, such as CRM campaign, social media, etc., to Braze. You will then have it as a native attribute in the user profile. You can use this as well for reporting and retargeting.
On the other side, if you're using another solution or something build by our own, you can send a webhook from your backend or service with the new data transformation feature to save this information as a custom attribute.
I hope that helps.
Best,
Max
