Quote responses are failing in the Ariba Network (AN) with the following error:

A supplier without a Vendor ID submitted a response to a Quote Automation. You must enter the supplier's Vendor ID information before Ariba Network can forward the response to your external ERP system.

You can resolve this error by following the below steps:

1. Sign in to the Ariba Network.
2. Click Administration > Configuration.
3. Click Default Transaction Rules.
4. Under the Quote Automation Rules section, enable the rule Forward quotes from public suppliers (This requires adapter having the ability to automatically create vendor in ERP).
5. Click Save.

The default transaction rule Forward quotes from public suppliers (This requires adapter having the ability to automatically create vendor in ERP) is disabled in the AN.

SAP Business Network for Procurement & Supply Chain