At which organizational level do you maintain source lists?

The correct answer is that source lists are maintained at the purchasing organization level. This is because the purchasing organization is responsible for negotiating contracts and establishing relationships with vendors for specific materials. The source list provides the details on which vendors are approved to supply which materials, and it can include information such as sourcing agreements, delivery conditions, and pricing agreements.

By maintaining source lists at the purchasing organization level, businesses can effectively manage their supplier relationships specific to the organizational units that are actually procuring the materials. This allows for greater flexibility and control in the procurement process, as different purchasing organizations may have different suppliers or conditions based on their unique operational needs.

In contrast, while the company code and plant are important organizational levels within SAP MM, they do not directly relate to the management of source lists. The client level is even broader and encompasses all data across the entire SAP system, which would not provide the necessary granularity for maintaining supplier information tailored to specific purchasing organizations.