How To Fix IDOC_METADATA406 - The passed RFC destination '&' has the wrong type

IDOC_METADATA406 - Overview

• Message type: E = Error

• Message class: IDOC_METADATA - Messages for metadata for the IDoc adapter

• Message number: 406

• Message text: The passed RFC destination '&' has the wrong type

What causes this issue?

The specified RFC destination is not of type SAP or internal.
You can only load IDoc structure data for RFC destinations of these
types.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the RFC destination and use a different one if necessary.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IDOC_METADATA406 - The passed RFC destination '&' has the wrong type ?

  The SAP error message IDOC_METADATA406 indicates that there is an issue with the RFC (Remote Function Call) destination being used in the context of IDoc processing. Specifically, the error message states that the passed RFC destination has the wrong type. This typically occurs when the system is trying to use an RFC destination that is not configured correctly or is not suitable for the operation being performed.
  
  Cause:
  
  Incorrect RFC Destination Type: The RFC destination may be configured as a type that is not compatible with the operation being performed. For example, it might be set as a "TCP/IP" destination instead of a "T" (Transactional RFC) destination.
  Missing or Incorrect Configuration: The RFC destination may not be properly configured in the SAP system, or it may be missing entirely.
  Network Issues: There could be network connectivity issues preventing the system from reaching the specified RFC destination.
  Authorization Issues: The user or system may not have