There are a few key requirements that need to be met to successfully add leads to Instantly campaigns: 1. Make sure you have added your Instantly API key to Clay. You can add this within any Instantly enrichment panel.
2. Verify that you're using an existing campaign in Instantly - you cannot create new campaigns directly within Clay.
3. Important: Any custom variables you want to use in Clay must already be added to your Instantly campaign through an import before trying to add leads.If you're still experiencing issues after checking these requirements, make sure: ** Your campaign ID is entered correctly
** The email field is properly mapped
* Auto-update is turned on if you're running trigger campaigns
Sources:Instantly - Clay UniversityAdd Lead to Campaign with Instantly