How To Fix /SAPAPO/TDL_DAO135 - Transactional writing not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 135

• Message text: Transactional writing not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TDL_DAO135 - Transactional writing not possible ?

  The SAP error message /SAPAPO/TDL_DAO135 Transactional writing not possible typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with transactional data writing. This error can arise due to various reasons, including system configuration issues, data inconsistencies, or problems with the underlying database.
  Causes:
  
  Database Locking Issues: The database may be locked due to another transaction, preventing the current transaction from writing data.
  Authorization Issues: The user may not have the necessary authorizations to perform the write operation.
  Data Inconsistencies: There may be inconsistencies in the data that prevent the transaction from being completed.
  System Configuration: Incorrect configuration settings in the APO system can lead to this error.
  Background Jobs: If there are background jobs running that affect the same data, it may lead to conflicts.
  
  Solutions:
  
  Check Database Locks: Use transaction codes like SM12 to check for any locks on the database that may be preventing the write operation. If locks are found, they may need to be released.
  Review Authorizations: Ensure that the user has the necessary authorizations to perform the operation. This can be checked using transaction SU53 or by consulting with your security team.
  Data Consistency Check: Run consistency checks on the relevant data. This can often be done using transaction codes like /SAPAPO/TSM or other relevant tools in APO.
  System Configuration Review: Review the configuration settings in the APO system to ensure they are set up correctly. This may involve checking settings related to the specific planning area or data model.
  Monitor Background Jobs: Check for any background jobs that may be running and affecting the same data. You can use transaction SM37 to monitor job statuses.
  Consult SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for locks), SM37 (for job monitoring), and SU53 (for authorization checks).
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs and any relevant logs.
  Documentation: Review SAP documentation related to APO and transactional data handling for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.