How To Fix /SAPAPO/OM_ERROR2221 - Doubled key error when adding a matrix

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 221

• Message text: Doubled key error when adding a matrix

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2221 - Doubled key error when adding a matrix ?

  The SAP error message /SAPAPO/OM_ERROR2221 indicates a "Doubled key error" when trying to add a matrix in the Advanced Planning and Optimization (APO) module. This error typically occurs when there is an attempt to create or modify a matrix (such as a planning object or a key figure) that has duplicate keys or identifiers, which violates the uniqueness constraint required by the system.
  
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the matrix you are trying to add already contains entries with the same key or identifier. This could happen if the data was imported or if there are existing entries that were not properly cleaned up.
  Incorrect Configuration: There may be a configuration issue where the key fields are not set up correctly, leading to conflicts when new entries are added.
  Data Consistency Issues: If there are inconsistencies in the data model or if the data has been corrupted,