How To Fix /SAPAPO/OBREF008 - Reading of predecessor object references for &1 not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OBREF -

• Message number: 008

• Message text: Reading of predecessor object references for &1 not possible

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/OBREF008 - Reading of predecessor object references for &1 not possible ?

  The SAP error message /SAPAPO/OBREF008 indicates that there is an issue with reading predecessor object references for a specific object in the Advanced Planning and Optimization (APO) module. This error typically arises when the system is unable to find the necessary predecessor data for a given object, which can be a product, a production order, or any other relevant entity in the APO system.
  Causes:
  
  Missing Data: The predecessor object may not exist in the system, or the data may not be properly maintained.
  Configuration Issues: There may be configuration issues in the APO system that prevent the system from accessing the predecessor data.
  Authorization Issues: The user may not have the necessary authorizations to access the predecessor data.
  Data Consistency Issues: There may be inconsistencies in the master data or transactional data that lead to this error.
  Technical Issues: There could be technical problems, such as database inconsistencies or issues with the APO background jobs.
  
  Solutions:
  
  Check Object Existence: Verify that the predecessor object exists in the system. You can do this by checking the relevant master data or transactional data.
  Maintain Data: If the predecessor object is missing, you may need to create or maintain the necessary data in the system.
  Review Configuration: Check the configuration settings in the APO system to ensure that they are set up correctly for handling predecessor relationships.
  Authorization Check: Ensure that the user has the necessary authorizations to access the predecessor data. You may need to consult with your security team to verify this.
  Data Consistency Check: Run consistency checks on the master data and transactional data to identify and resolve any inconsistencies.
  Technical Support: If the issue persists, consider reaching out to your technical support team or SAP support for further assistance. They may need to investigate logs or perform database checks.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/OM17 (for checking the master data) or /SAPAPO/OM00 (for checking the planning book) to investigate further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP APO documentation for more information on managing predecessor relationships and troubleshooting related issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.