ECO- xml Validation Error/ Transaction Not Allowed

ECO- XML Validation Error/ Transaction Not Allowed

 XML validation error/ Transaction not allowed

  1. Check the Merchant Category Code (MCC) on the parameters on the TSYS file.
  2. Check the TPP ID for Rapid Connect Applications. Please note that the TPP IDs have changed over time.  If the ISO is updating an old file to a new version, the TPP IDs may need to be updated manually in the file for them to be correct.