How To Fix JBDEXP121 - Error during RFC call. No free resources available

JBDEXP121 - Overview

• Message type: E = Error

• Message class: JBDEXP - Messages for Change Pointer and Extract Program

• Message number: 121

• Message text: Error during RFC call. No free resources available

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message JBDEXP121 - Error during RFC call. No free resources available ?

  The SAP error message JBDEXP121 indicates that there was an error during a Remote Function Call (RFC) due to a lack of available resources. This typically occurs when the system is unable to allocate the necessary resources to process the RFC request, which can be caused by various factors.
  Causes:
  
  Resource Limitations: The system may have reached its limit for concurrent RFC calls or other resource constraints (e.g., memory, CPU).
  
  Configuration Issues: The RFC destination may not be configured correctly, or there may be issues with the connection settings.
  System Load: High system load or performance issues can lead to resource exhaustion.
  Network Issues: Problems with the network can also cause delays or failures in establishing RFC connections.
  Background Jobs: If there are too many background jobs running, it can lead to resource contention.
  
  Solutions:
  
  Check System Resources: Monitor the system's resource usage (CPU, memory, etc.) to identify any bottlenecks. Use transaction codes like SM50 (for process overview)