How To Fix NI126 - Internal program error occurred when change pointers were read

SAP Error Message - Details

• Message type: E = Error

• Message class: NI - Document index processing

• Message number: 126

• Message text: Internal program error occurred when change pointers were read

What causes this issue?

An error occurred when change pointers were read.

System Response

Processing is terminated.

How to fix this error?

Please contact your R/3 system administrator. A programm error
occurred.

Procedure for System Administrators

Function module 'CHANGE_POINTERS_READ', called to read change
pointers, recorded an error (exception number &V1&). Please contact
SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NI126 - Internal program error occurred when change pointers were read ?

  The SAP error message NI126, which states "Internal program error occurred when change pointers were read," typically indicates an issue related to the change pointer mechanism in SAP. Change pointers are used in SAP to track changes to data objects, and this error can arise due to various reasons, including inconsistencies in the change pointer tables or issues with the underlying data.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the change pointer tables (e.g., DBTABLOG, CHANGEDOC, etc.) that prevent the system from reading the change pointers correctly.
  Program Errors: There could be a bug or an internal error in the SAP program that is trying to read the change pointers.
  Configuration Issues: Incorrect configuration of change pointer settings in the relevant application area can lead to this error.
  Database Issues: Problems with the database, such as corruption or locking issues, can also trigger this error.
  
  Solutions:
  
  Check Change Pointer Tables: Use transaction codes like SE11 or SE16 to check the relevant change pointer tables for inconsistencies. Look for any entries that seem out of place or corrupted.
  Reinitialize Change Pointers: If you suspect that the change pointers are corrupted, you may need to reinitialize them. This can involve deleting existing change pointers and allowing the system to recreate them.
  Check for SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Debugging: If you have access to debugging tools, you can try to debug the program that is generating the error to identify the root cause.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that might provide more context about the issue.
  Consult SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any relevant logs and the steps that led to the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), SLG1 (Application Log), and SE80 (Object Navigator) for troubleshooting.
  Change Pointer Configuration: Review the configuration settings for change pointers in the relevant application area (e.g., SD, MM) to ensure they are set up correctly.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to diagnose and potentially resolve the NI126 error in your SAP system.