How To Fix CDSUI008 - BOL Structure scanning was stopped because the maximum depth was reached

SAP Error Message - Details

• Message type: E = Error

• Message class: CDSUI - Central Data Source UI messages

• Message number: 008

• Message text: BOL Structure scanning was stopped because the maximum depth was reached

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CDSUI008 - BOL Structure scanning was stopped because the maximum depth was reached ?

  The SAP error message CDSUI008 indicates that the scanning of the Business Object Layer (BOL) structure was halted because it reached the maximum depth limit. This typically occurs in the context of Core Data Services (CDS) views or when working with the SAP Fiori/UI5 framework, where complex data structures are involved.
  Cause:
  
  Complex Data Structures: The error is often caused by overly complex or deeply nested data structures in your CDS views or BOL models. If the structure has too many levels of hierarchy, it can exceed the predefined maximum depth limit.
  Circular References: If there are circular references in the data model, it can lead to infinite loops during the scanning process, causing the depth limit to be reached.
  Configuration Limits: The system has a default configuration for the maximum depth of BOL structures, which can be exceeded in certain scenarios.
  
  Solution:
  
  Simplify the Data Model: Review the CDS view or BOL structure to identify areas where you can simplify the hierarchy. Try to flatten the structure or reduce the number of nested entities.
  Check for Circular References: Ensure that there are no circular references in your data model. If you find any, refactor the model to eliminate them.
  Adjust Configuration (if applicable): If you have control over the system configuration, you may consider increasing the maximum depth limit. This can usually be done in the system settings, but it should be approached with caution as it may have performance implications.
  Debugging: Use debugging tools to trace the execution and identify where the depth is being exceeded. This can help pinpoint the specific part of the model that is causing the issue.
  Consult Documentation: Refer to SAP documentation or community forums for any specific guidelines or best practices related to the BOL structure and CDS views.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches or updates that could resolve the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Considerations: Be aware that increasing the maximum depth limit may lead to performance degradation, especially if the data model is already complex.
  
  By addressing the complexity of your data structures and ensuring there are no circular references, you should be able to resolve the CDSUI008 error effectively.