Eloqua and custom CRM integration

Hi Team,

In a scenario where a customer is having a custom CRM (master data), is using import via SFTP to add contacts to Eloqua. After the campaigns are executed, how can campaign metrics along campaign details be automatically synced to CRM from Eloqua?

The activity export has few fields to identify the activities, but campaign name or campaign ID is not available.

Any thoughts?

Best,

Kamal