Hi Mrugesh,
I have few questions:
Is there an ID sync on the website/app? If yes, what is the primary ID used for ID syncing, is that hashed email ID or a customer ID?
Have you already set up the declared ID based integration with Adobe campaign?
On generic note, I can tell it is possible.
You need to use declared ID based integration. So, the users that you will target via ACC, you can export those to AAM using the AAM to ACC integration or via export/ETL workflow from ACC to AAM. Basically, ACC will export the onboarding data file for AAM to ingest.
Before that, you should have offline traits and segments in place. Segments should have a profile merge rule applied on them. Profile merge rule should be using the ACC declared ID data source or the cross device data source you used to ingest file into AAM on that segment.
The primary ID in ACC exported file should also have ID sync implemented on the website/app.
If you use ECID based integration, then you can only target those people who received the email and landed onto the website/app as that's a cookie based integration.
Thanks,
Varun Kalra