How To Fix CNVMBT221 - Definition of destination &1 incorrect - connection not possible

CNVMBT221 - Overview

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 221

• Message text: Definition of destination &1 incorrect - connection not possible

The definition of the mentioned RFC destination has been changed and
connection has been tested.
The connection to the corresponding system was NOT possible.

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

Check whether the corresponding target system is online.
Check / correct the settings of the mentioned destination .

Error message extract from SAP system. Copyright SAP SE.

CNVMBT221 - Details

• The SAP error message CNVMBT221 indicates that there is an issue with the definition of a destination in the system, which is preventing a connection from being established. This error typically arises in the context of data migration or system conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services.
  
  Cause:
  
  Incorrect Destination Configuration: The destination defined in the SAP system (e.g., RFC destination) may be incorrectly configured. This could include wrong connection parameters, such as the hostname, port, or user credentials.
  Network Issues: There may be network connectivity issues between the SAP system and the target system.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations to access the target system.
  Service Not Running: The service on the target system that the SAP system is trying to connect to may not be running or may be misconfigured.
  Firewall Restrictions: Firewalls or security settings may be