When searching for supplier in your SAP Ariba systems, you may encounter supplier IDs with the prefix ACM or Buyer in the search results.

The ACM and Buyer designations are automatically assigned by the system when creating suppliers through the User Interface, based on where the supplier is created.

Supplier IDs starting with ACM indicate that the suppliers were created in your SAP Ariba Sourcing solution, whereas those with Buyer indicate suppliers originally created in your SAP Ariba Procurement solution.

Please note that when creating suppliers via an import task, you can include any value in the SystemID field, which allows you to manually add prefixes like Buyer and ACM if needed.

Core Procurement > Core Administration > Core Administration Supplier Management