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Sometimes a conversion is reversed after it was credited, for example when the advertiser finds it was fraudulent or the user didn’t really meet the offer’s requirements. Invalid conversions aren’t paid, so we send a reversal postback and deduct the payout from your earnings.

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What a reversal looks like

A reversal is a postback with status=2. It repeats the user_id, transaction_id and offer_id of the original conversion, and reward and payout are negative:
The signature is made the same way, with the negative reward exactly as received. See Verify postbacks.

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Handling a reversal

  1. Verify the signature.
  2. If you’ve already processed this transaction_id with status=2, answer 200 and stop.
  3. Add the negative reward to the user’s balance. Decide what happens if that takes the balance below zero: allow it, or flag the account for review.
  4. Answer 200.
The handler examples already do this: they store each transaction_id and status pair once and add reward to the balance, which debits the user when it’s negative.
A reversal can arrive days or weeks after the conversion, so keep a record of every transaction_id for at least 90 days.

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Effect on your earnings

The reversed payout is deducted from your earnings for the month of the original conversion. If that month has already been invoiced, it’s deducted from a later month instead. See Payments. You can see every reversal and its reason in the dashboard under Reports > Reversals.