How To Fix /SAPAPO/OM_ERROR121 - Invalid or incorrect sublocation when creating a stock

/SAPAPO/OM_ERROR121 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR -

• Message number: 121

• Message text: Invalid or incorrect sublocation when creating a stock

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR121 - Invalid or incorrect sublocation when creating a stock ?

  The SAP error message /SAPAPO/OM_ERROR121 indicates that there is an issue with the sublocation specified when trying to create stock in the Advanced Planning and Optimization (APO) module. This error typically arises when the sublocation is either invalid or not correctly defined in the system.
  
  Cause:
  
  Invalid Sublocation: The sublocation you are trying to use does not exist in the system or is not correctly defined in the master data.
  Incorrect Configuration: The configuration settings for the location or sublocation may not be set up properly in the system.
  Data Inconsistency: There may be inconsistencies in the data related to the location or sublocation, such as missing entries in the relevant tables.
  Authorization Issues: The user may not have the necessary authorizations to access or create stock in the specified sublocation.
  
  
  Solution:
  
  
  Check Sublocation Definition:
  
  Go to the relevant transaction (e.g., /SAPAPO/LOCATIONS) to verify that the sublocation exists and is correctly defined.
  Ensure that the sublocation is active and