How To Fix ME579 - Some of the requisitions cannot be converted into purchase orders

ME579 - Overview

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 579

• Message text: Some of the requisitions cannot be converted into purchase orders

What causes this issue?

The requisition was generated from a Sales and Distribution document.
It can only be converted into a single purchase order item. It is not
possible to reference it in more than one PO item.
However, since the quantity covered by this requisition has already
been ordered in part, no new PO item can be generated.

System Response

This requisition will not be taken into account when you generate the
purchase order.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME579 - Some of the requisitions cannot be converted into purchase orders ?

  The SAP error message ME579 indicates that some requisitions cannot be converted into purchase orders. This error can occur for various reasons, and understanding the cause is essential for resolving the issue. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Incomplete or Incorrect Data: The requisition may have missing or incorrect information, such as vendor details, material numbers, or quantities.
  Blocked Requisitions: The requisition might be blocked for purchasing due to various reasons, such as budget constraints or approval workflows.
  Invalid Vendor: The vendor associated with the requisition may not be valid or may not be set up for the purchasing organization.
  Material Master Issues: The material may not be set up correctly in the material master, or it may be marked as inactive.
  Purchase Order Limits: There may be limits set on the purchase order that prevent the requisition from being converted.
  Account Assignment Issues: The account assignment in the requisition may not