How To Fix /SAPAPO/TDL_DAO038 - Error reading supply source

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 038

• Message text: Error reading supply source

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TDL_DAO038 - Error reading supply source ?

  The SAP error message /SAPAPO/TDL_DAO038 indicates an issue related to reading the supply source in the Advanced Planning and Optimization (APO) module. This error typically arises when the system is unable to access or retrieve the necessary data related to supply sources, which can be due to various reasons.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the master data, such as missing or incorrect supply source information.
  Authorization Issues: The user may not have the necessary authorizations to access the supply source data.
  Configuration Errors: Incorrect configuration settings in the APO system can lead to this error.
  Database Issues: Problems with the database, such as connectivity issues or corruption, can prevent data retrieval.
  Transport Issues: If the system has recently undergone a transport of changes, it may not have been properly executed, leading to missing data.
  
  Solutions:
  
  Check Master Data: Verify that the supply source data is correctly maintained in the system. Ensure that all relevant master data (like materials, locations, etc.) is complete and accurate.
  Review Authorizations: Ensure that the user encountering the error has the necessary authorizations to access the supply source data.
  Configuration Review: Check the configuration settings in the APO system to ensure they are set up correctly for supply source determination.
  Database Check: Investigate any potential database issues. This may involve checking for connectivity problems or running database consistency checks.
  Transport Management: If the error occurred after a transport, review the transport logs and ensure that all necessary objects were transported correctly.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SAPAPO/SDP94 (for supply network planning) or /SAPAPO/MC90 (for master data) to investigate further.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches and updates.
  Documentation: Review the SAP APO documentation for detailed information on supply source configuration and troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or APO support team for further assistance.