How To Fix WRF_APC503 - You must enter a purchasing list item

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 503

• Message text: You must enter a purchasing list item

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC503 - You must enter a purchasing list item ?

  SAP Error Message:
  
  WRF_APC503: You must enter a purchasing list item
  
  Cause:
  This error occurs when the system expects a purchasing list item to be entered but it is missing. Typically, this happens in scenarios involving purchasing lists or source lists in SAP Materials Management (MM) or Production Planning (PP) modules, especially when creating or processing purchase requisitions, purchase orders, or production orders that require referencing a purchasing list item.
  The system enforces that a valid purchasing list item must be specified to proceed, ensuring that the procurement or production process follows the predefined source of supply or purchasing agreements.
  
  When does it occur?
  
  When creating or changing purchase requisitions or purchase orders that are linked to purchasing lists.
  When processing production orders or planned orders that require a purchasing list item for components or raw materials.
  When the system configuration or business process mandates the use of purchasing lists/source lists for certain materials or vendors.
  
  
  Solution:
  
  
  Enter a Purchasing List Item:
  
  When prompted, ensure that you enter a valid purchasing list item number.
  Check the purchasing list or source list for the material/vendor combination and select the appropriate item.
  
  
  
  Check Source List / Purchasing List Setup:
  
  Verify that the purchasing list or source list exists and is correctly maintained for the material and vendor.
  Use transaction codes like ME01 (Create Source List), ME03 (Display Source List), or ME04 (Maintain Source List) to check or maintain the source list.
  
  
  
  Review Material Master and Vendor Master Data:
  
  Ensure that the material master data is correctly maintained with the relevant procurement type.
  Verify vendor master data and ensure the vendor is valid and linked properly.
  
  
  
  Check Configuration Settings:
  
  In some cases, the system might be configured to enforce purchasing list usage strictly.
  Review the configuration in IMG under Materials Management > Purchasing > Source Determination to see if purchasing lists are mandatory.
  
  
  
  Consult with Functional Consultant:
  
  If unsure about the purchasing list requirements or system behavior, consult with an MM or PP functional consultant to understand the business process and system configuration.
  
  
  
  
  Related Information:
  
  
  Purchasing List / Source List:
  
  A purchasing list (or source list) is a list of approved sources of supply for a material. It helps in source determination during procurement.
  
  
  Transaction Codes:
  
  ME01 – Create Source List
  ME02 – Change Source List
  ME03 – Display Source List
  ME04 – Maintain Source List
  
  
  
  SAP Notes / Documentation:
  
  Check SAP OSS notes or SAP Help Portal for any specific notes related to message WRF_APC503 if the problem persists.
  
  
  
  Summary:
  The error WRF_APC503 indicates that a purchasing list item is mandatory but missing. To resolve it, enter the required purchasing list item, verify the source list setup, and ensure that the procurement process aligns with the system’s purchasing list requirements.