Voluum postback integration: send RastroAff conversions to Voluum

Connect Voluum to RastroAff: pass Voluum's clickid in sub1, add the Voluum postback template with txid, and test it before sending traffic.

Updated on 30 Oct 2026

Voluum tracks your ads and costs; RastroAff tracks the offer and pays you. With a postback, every RastroAff conversion is recorded in Voluum against the click that produced it.

1. Pass Voluum's clickid in sub1

In Voluum, create the offer with your RastroAff tracking link as the offer URL, and append Voluum's click macro to sub1:

https://track.rastroaff.com/click/AbC123xY?sub1={clickid}

Your link has no other parameters, so sub1 starts with ?. If you add more (for example a landing page), join them with &. See tracking links.

2. Add the postback in RastroAff

In your affiliate panel, go to Integration → Postback, add a postback and choose Voluum under Template for your tracker:

https://VOLUUM_DOMAIN/postback?cid={sub1}&payout={payout}&txid={txn_id}

Replace VOLUUM_DOMAIN with your Voluum domain. The template sends approved conversions. The advertiser's transaction ID goes in txid, so Voluum doesn't count the same sale twice.

The postback URL builder fills in the domain for you.

3. Test before sending traffic

Click Send test to call the URL with sample values and see Voluum's response. Then send a real click and check Recent deliveries in RastroAff and the conversion in Voluum.

If conversions don't arrive

Empty cid: the offer URL in Voluum is missing sub1={clickid}.
Wrong domain: use only the domain (for example abc123.voluumtrk.com), without https:// or a path.
Errors in Recent deliveries: RastroAff retries failed deliveries up to 5 times over 15 hours.