How To Fix SHDB_PFW721 - External RFC call of &1 not allowed

SHDB_PFW721 - Overview

• Message type: E = Error

• Message class: SHDB_PFW -

• Message number: 721

• Message text: External RFC call of &1 not allowed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SHDB_PFW721 - External RFC call of &1 not allowed ?

  The SAP error message SHDB_PFW721, which states "External RFC call of &1 not allowed," typically occurs when there is an attempt to execute a function module or RFC (Remote Function Call) that is not permitted to be called externally. This restriction is often in place for security reasons or to maintain system integrity.
  
  Cause:
  
  Security Restrictions: The function module or RFC you are trying to call is designed to be used internally within the SAP system and is not intended for external calls.
  Configuration Settings: The function module may have been configured to restrict external access, either by design or due to specific security policies.
  Authorization Issues: The user or system making the call may not have the necessary authorizations to execute the function module externally.
  
  
  Solution:
  
  
  Check Function Module Attributes:
  
  Go to transaction SE37 (Function Module) and enter the name of the function module that is causing the error.
  Check the attributes of the function module. Look