How To Fix G3668 - Maximum number of read routines (&1) was reached in program &2

SAP Error Message - Details

• Message type: E = Error

• Message class: G3 - Messages for SAP Consolidation: Integration

• Message number: 668

• Message text: Maximum number of read routines (&1) was reached in program &2

What causes this issue?

Program &V2& contains generated form routines to read master and
transaction data from the sender systems. At most &V1& such routines
can be administrated. This maximum number would be exceeded by
additional functions that are to be generated.

System Response

The system removes all generated form routines from program &V2&.
Program execution is terminated.

How to fix this error?

Start the program again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message G3668 - Maximum number of read routines (&1) was reached in program &2 ?

  The SAP error message G3668, which states "Maximum number of read routines (&1) was reached in program &2," typically occurs when the system has hit a limit on the number of read routines that can be executed in a single program or transaction. This is often related to performance issues or limitations in the way data is being accessed or processed.
  Cause:
  
  Excessive Read Routines: The program is trying to execute more read routines than the system allows. This can happen if there are too many database accesses or if the program is poorly designed.
  Inefficient Code: The code may be inefficiently written, leading to unnecessary database calls.
  Large Data Volume: The program may be processing a large volume of data, which can lead to hitting the limit on read routines.
  Configuration Limits: There may be configuration settings in the SAP system that limit the number of read routines.
  
  Solution:
  
  Optimize Code: Review the program code to identify and eliminate unnecessary read routines. Look for opportunities to consolidate database accesses or use more efficient data retrieval methods.
  Batch Processing: If the program is processing a large volume of data, consider implementing batch processing to reduce the number of read routines executed at once.
  Use Buffering: If applicable, use buffering techniques to minimize database reads. This can help reduce the number of read routines executed.
  Check Configuration: Review the system configuration settings related to read routines. If necessary, consult with your SAP Basis team to see if the limits can be adjusted.
  Debugging: Use debugging tools to trace the execution of the program and identify where the excessive read routines are being triggered.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on performance optimization and best practices for coding.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Analysis Tools: Utilize SAP performance analysis tools (like ST05 for SQL trace) to analyze the performance of the program and identify bottlenecks.
  
  By addressing the underlying causes and optimizing the program, you should be able to resolve the G3668 error and improve the performance of your SAP application.