1. Sign in into Branch.io
2. Go to Data import & Export in the left menu
3. Go to Data Feeds in the left menu
4. Go to Webhooks in top tabs
5. Click Add new webhook button
6. Go to devtodev Settings -> 3rd party attribution and copy postback URL, then enable integration by clicking On button.
7. Paste the callback to webhook Send field and click Save.
Integration is complete.