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

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 126

• Message text: Data array insertion failed

Self-Explanatory Message

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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 Data Format: Make sure that the data format matches the expected format in the target data structure. This includes checking data types, lengths, and any required fields.
  Monitor System Resources: Check the system's memory and resource usage. If necessary, increase the available resources or optimize the data being processed.
  Review Configuration: Verify the configuration settings in the APO system and the data transfer process. Ensure that all settings are correct and aligned with the data being processed.
  Check for Locks: Investigate if there are any locks on the target data structure. You can use transaction codes like SM12 to check for locks and release them if necessary.
  Error Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context on the failure.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/TDL for TDL-related activities, and SLG1 for application logs.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Documentation: Review the SAP APO documentation for best practices on data uploads and handling data integrity issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or APO support team for further investigation and assistance.