How To Fix B1636 - Number of tRFC calls to IDocs with the defined selection criteria

B1636 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 636

• Message text: Number of tRFC calls to IDocs with the defined selection criteria

What causes this issue?

Contains a performance attribute that specifies the number of open tRFC
calls of IDocs for this ALE monitoring object.

How to fix this error?

You can process the tRFCs in transaction SM58.

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.

B1636 - Details

• The SAP error message B1636 indicates that the number of tRFC (Transactional Remote Function Call) calls to IDocs (Intermediate Documents) has exceeded the defined selection criteria. This typically occurs when there are too many IDocs being processed in a single batch or when the system is overwhelmed with requests.
  
  Cause:
  
  High Volume of IDocs: The system is trying to process a large number of IDocs at once, which exceeds the limits set in the configuration.
  Configuration Limits: The system has predefined limits for the number of tRFC calls that can be processed simultaneously or within a certain timeframe.
  Performance Issues: The system may be experiencing performance issues, leading to delays in processing IDocs, which can cause a backlog.
  Network Issues: Problems with network connectivity can also lead to delays in processing tRFC calls.
  
  
  Solution:
  
  Adjust tRFC Settings: Review and adjust the settings for tRFC calls in the SAP system. This can be done in transaction SM58 (tRFC