How To Fix WRF_APC561 - Market buying number is not changeable; you cannot save your change

WRF_APC561 - Overview

• Message type: E = Error

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

• Message number: 561

• Message text: Market buying number is not changeable; you cannot save your change

What causes this issue?

You tried to change or enter a number for maket buying.

System Response

You cannot change or enter a number because material &V1& occurs in
several purchasing lists or items.

How to fix this error?

You cannot change or enter a number.

Procedure for System Administrators

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 WRF_APC561 - Market buying number is not changeable; you cannot save your change ?

  SAP Error Message:
  WRF_APC561 Market buying number is not changeable; you cannot save your change
  
  
  Cause:
  This error occurs when you attempt to change the Market Buying Number in a transaction or master data record where this field is either locked or not allowed to be modified due to system or business logic restrictions.
  Specifically, the Market Buying Number is often a key or reference number linked to purchasing or procurement processes, and once set and saved in certain contexts (e.g., contracts, purchase info records, or specific procurement documents), SAP does not allow it to be changed to maintain data consistency and integrity.
  Common scenarios causing this error include:
  
  Trying to change the Market Buying Number in a purchase info record or contract after it has been saved.
  Attempting to modify the field in a document that is already processed or released.
  The field is controlled by customizing or user-exits/BAdIs that prevent changes after initial entry.
  
  
  
  Solution:
  
  
  Check the Document