How To Fix RLFW420 - Callback executed for aRFC task &1.

RLFW420 - Overview

• Message type: E = Error

• Message class: RLFW - Messages for runlevel framework

• Message number: 420

• Message text: Callback executed for aRFC task &1.

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RLFW420 - Callback executed for aRFC task &1. ?

  The SAP error message RLFW420, which states "Callback executed for aRFC task &1," typically relates to issues with asynchronous Remote Function Call (aRFC) processing in SAP. This error can occur in various scenarios, often indicating that there was a problem with the execution of a callback function for an aRFC task.
  Causes:
  
  Network Issues: Problems with network connectivity between the SAP systems can lead to a failure in executing the aRFC task.
  Configuration Errors: Incorrect configuration of the RFC destinations or the aRFC settings in the SAP system can cause this error.
  Resource Limitations: Insufficient system resources (like memory or processing power) can lead to failures in executing aRFC tasks.
  Timeouts: If the aRFC task takes too long to execute, it may time out, leading to this error.
  Code Issues: Bugs or issues in the ABAP code that is being executed as part of the aRFC task can also trigger this error.
  
  Solutions:
  
  Check Network Connectivity: Ensure that