How To Fix /SAPAPO/DC_MSG253 - Selection has already been made for source &1

/SAPAPO/DC_MSG253 - Overview

• Message type: E = Error

• Message class: /SAPAPO/DC_MSG -

• Message number: 253

• Message text: Selection has already been made for source &1

Self-Explanatory Message

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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.

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/SAPAPO/DC_MSG253 - Details

• The SAP error message /SAPAPO/DC_MSG253 Selection has already been made for source &1 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an attempt to select a source that has already been selected in a planning run or during a planning process. This can happen in various scenarios, such as during the creation of a planning book, when trying to assign sources to a product, or when executing a planning function.
  
  Cause:
  
  Duplicate Selection: The error indicates that the source (e.g., a location, vendor, or production facility) has already been selected for the specific planning object or context.
  Planning Book Configuration: The configuration of the planning book may not allow multiple selections for the same source.
  Data Integrity Issues: There may be issues with the data integrity in the master data or transaction data that lead to this error.
  
  
  Solution:
  
  Check Existing Selections: Review the current selections made for the