Tracking implementation
Postback URL Setup: A Server-to-Server Tracking Checklist
Set up and verify a postback URL with a practical checklist for click IDs, conversion events, deduplication, response codes, delays, and privacy.
ABC Editorial Team · Editorial review: Editorial review completed; implementation examples are vendor-neutral and should be checked against the current network documentation. · Updated 2026-09-02
Map the complete conversion handoff
A postback works only when every system agrees on the same event and identifier. Document the click ID created by the traffic source or tracker, the value passed to the network, the conversion event returned, and the field used to connect the two. Keep the map beside the campaign naming convention so an operator can audit one conversion without guessing.
- Record source, campaign, click ID, event name, and payout fields
- Define which system is authoritative for approval and revenue
- Use HTTPS and restrict access to logs and credentials
Test success, failure, and duplication
Do not validate a postback only by seeing one conversion in a dashboard. Send a controlled test through the full path, inspect the request and response, then repeat it with an invalid identifier and a duplicate event. A useful runbook records the expected status code, the time to appear in each system, and the action an operator takes when a request is delayed or rejected.
- Confirm the click ID survives every redirect and handoff
- Verify the conversion is recorded once, not once per retry
- Capture 4xx and 5xx responses with a timestamp and campaign context
Troubleshoot the signal before scaling
Missing conversions can come from a lost identifier, a blocked request, a mismatched event name, an approval delay, or a tracker configuration issue. Compare raw request logs with the network and tracker reports over a defined window. Fix the smallest broken handoff first, and keep a change note so later performance analysis is not confused with an instrumentation change.
- Separate technical delivery from conversion approval
- Check timezone, currency, and event-value transformations
- Re-test after domain, offer, or consent-flow changes
Frequently asked questions
What is required for a postback URL setup?
You need a stable click or transaction identifier, an agreed conversion event, a secure endpoint, documented parameters, and a test that proves the event is delivered and deduplicated across the complete flow.
Why are postback conversions missing?
Common causes include a lost click ID, incorrect parameter names, blocked or failing requests, event mismatches, delayed approvals, and tracker or network configuration changes. Compare logs with both reporting systems before changing the campaign.
Does a postback remove privacy obligations?
No. Server-to-server delivery changes the transport, not the legal or platform responsibilities. Collect only necessary data and verify consent, disclosure, retention, and partner requirements for each market.