How To Fix SDS_COMMON022 - Unexpected error &1 during calculation of allowed aRFC processes

SAP Error Message - Details

• Message type: E = Error

• Message class: SDS_COMMON -

• Message number: 022

• Message text: Unexpected error &1 during calculation of allowed aRFC processes

What causes this issue?

An unexpected error occurred while retrieving the number of work
processes from the system.

System Response

The processing is cancelled.

How to fix this error?

Contact SAP for assistance.

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 SDS_COMMON022 - Unexpected error &1 during calculation of allowed aRFC processes ?

  The SAP error message SDS_COMMON022 indicates that there was an unexpected error during the calculation of allowed asynchronous Remote Function Call (aRFC) processes. This error can occur in various scenarios, often related to system configuration, resource limitations, or issues with the aRFC framework itself.
  Possible Causes:
  
  
  Configuration Issues: Incorrect settings in the SAP system configuration related to aRFC parameters.
  Resource Limitations: Insufficient system resources (e.g., memory, CPU) to handle the aRFC processes.
  System Bugs: There may be bugs in the SAP kernel or specific components that handle aRFC.
  Database Issues: Problems with the database connection or performance can lead to unexpected errors.
  Transport Layer Issues: Issues in the transport layer that affect communication between different SAP instances.
  
  Solutions:
  
  
  Check Configuration:
  
  Review the configuration settings for aRFC in transaction RZ10 or RZ12. Ensure that parameters like rdisp/wp_no_aRFC are set correctly.
  Verify the settings in transaction SM59 for RFC destinations.
  
  
  
  Monitor System Resources:
  
  Use transaction SM50 or SM66 to monitor the work processes and