ads.txt mismatch / partner not spending

Diagnose why authorized-looking supply is not transacting: a missing or unauthorized ads.txt line, a DIRECT/RESELLER type mismatch against sellers.json, or an incomplete schain that buyers reject.

Step 1

Does ads.txt contain a line for this SSP and account?

What to check

Open https://<your-domain>/ads.txt (web root, not under .well-known) and find the SSP domain with the account id the partner gave you. Confirm the field-3 type (DIRECT or RESELLER) matches what the partner expects.

ads.txt vs sellers.json audit →

What did you find?