How To Fix /SAPAPO/TDL_DAO126 - Data array insertion failed

/SAPAPO/TDL_DAO126 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 126

• Message text: Data array insertion failed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TDL_DAO126 - Data array insertion failed ?

  The SAP error message /SAPAPO/TDL_DAO126 Data array insertion failed typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with inserting data into a data array, often related to the Transfer Data Layer (TDL) or during data uploads.
  Causes:
  
  Data Integrity Issues: The data being inserted may violate integrity constraints, such as primary key violations or foreign key constraints.
  Data Format Issues: The format of the data being uploaded may not match the expected format in the target data structure.
  Memory Issues: Insufficient memory or resources available in the system to handle the data insertion.
  
  Configuration Issues: Incorrect configuration settings in the APO system or in the data transfer process.
  Locking Issues: The target data structure may be locked by another process, preventing the insertion of new data.
  
  Solutions:
  
  Check Data Integrity: Ensure that the data being uploaded does not violate any constraints. Validate the data for duplicates or incorrect references.
  Validate