How To Fix SY564 - RFC service &1 with function module &2 not assigned to a service assembly

SY564 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 564

• Message text: RFC service &1 with function module &2 not assigned to a service assembly

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 SY564 - RFC service &1 with function module &2 not assigned to a service assembly ?

  The SAP error message SY564 indicates that a specific RFC (Remote Function Call) service is not properly assigned to a service assembly. This can occur in various scenarios, particularly when dealing with remote function calls in SAP systems.
  
  Cause:
  The error typically arises due to one of the following reasons:
  
  Missing Assignment: The function module specified in the error message is not assigned to any service assembly in the SAP system.
  
  Configuration Issues: There may be issues in the configuration of the RFC destination or the service assembly itself.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly configured in the target system.
  Authorization Issues: The user executing the RFC call may not have the necessary authorizations to access the function module.
  
  
  Solution:
  To resolve the SY564 error, you can follow these steps:
  
  
  Check Function Module Assignment:
  
  Go to transaction SE80 (Object Navigator) or SE37 (Function Module).
  Check if the function module