← All disapproval codes
warning Reason Code 91 / 8159 - Display URL formatting

Display URL Formatted Incorrectly

What this means

The display URL shown in your ad doesn't match the actual destination domain or contains formatting Microsoft does not allow. Code 8159 specifically rejects multiple display-URL domains in one ad group.

Why this happens

Display URL points to different root domain than final URL (cloaking); subdomain mismatch; uppercase or special characters in display URL; or an ad group containing offers from multiple brand domains. Microsoft requires display URL root to match destination root domain.

How to fix it

  1. Match display URL root domain to final URL destination
  2. Use lowercase letters in display URL
  3. Group offers by domain to avoid multi-domain ad groups
  4. Remove special characters from display URL

Common pitfalls