How To Fix ON102 - Not enough space to represent all recursions

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 102

• Message text: Not enough space to represent all recursions

What causes this issue?

The program attempted to represent all existing direct recursions on
the list. This was, however, not possible as there was insufficient
space. For this reason not all existing recursions are shown in the
display.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

This is just for your information. No further action is required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON102 - Not enough space to represent all recursions ?

  The SAP error message ON102, which states "Not enough space to represent all recursions," typically occurs in the context of recursive function calls or operations that involve deep hierarchies, such as when working with hierarchical data structures in SAP systems. This error indicates that the system has reached a limit in terms of the depth of recursion or the amount of memory allocated for processing recursive calls.
  Causes:
  
  Deep Recursion: The operation you are trying to perform involves a recursive function that exceeds the maximum allowed recursion depth.
  Large Hierarchical Structures: If you are working with large datasets or complex hierarchies, the system may not have enough memory allocated to handle the operations.
  Configuration Limits: There may be configuration settings in the SAP system that limit the depth of recursion or the amount of memory available for certain operations.
  
  Solutions:
  
  Optimize Recursive Logic: Review the logic of the recursive function or operation. Try to optimize it to reduce the depth of recursion or to avoid recursion altogether if possible.
  Increase Memory Allocation: If the operation requires more memory, consider increasing the memory allocation for the SAP system. This may involve adjusting parameters in the SAP profile settings.
  Batch Processing: If you are processing a large dataset, consider breaking it down into smaller batches to avoid hitting recursion limits.
  Check Configuration Settings: Review the configuration settings related to recursion limits and memory allocation in your SAP system. Adjust these settings if necessary, but be cautious as increasing limits can lead to other performance issues.
  Use Iterative Approaches: If applicable, consider using iterative algorithms instead of recursive ones, as they typically use less memory and can handle larger datasets more efficiently.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error. SAP frequently updates its documentation and may have specific recommendations for your version of the software.
  System Logs: Review system logs for additional context around the error. This may provide insights into what operations were being performed when the error occurred.
  Performance Monitoring: Use SAP performance monitoring tools to analyze memory usage and identify bottlenecks in your processes.
  
  If the problem persists after trying these solutions, it may be beneficial to consult with SAP support or your system administrator for further assistance.