What mandatory field requires an end user's identification in a Purchase Requisition?

The correct answer for the mandatory field that requires an end user's identification in a Purchase Requisition is the User Name (EDIPI). This is essential as the User Name, which refers to the Electronic Data Interchange Personal Identifier (EDIPI), uniquely identifies the individual making the requisition. It helps ensure accountability and traceability in the procurement process, allowing for proper tracking of who initiated the request and facilitating communication if any clarifications or approvals are needed.

While other fields like DODAAC, Approval Permissions, and Max Value are important for different aspects of the Purchase Requisition process, they do not specifically serve the purpose of identifying the individual user who is submitting the requisition. DODAAC is related to the organizational identification; Approval Permissions pertains to the authorization level required for processing, and Max Value indicates the financial limit, but none of these fulfill the role of indicating the user's personal identification for the purchase process.