How To Fix IDOC_ADAPTER421 - Enter a port name

SAP Error Message - Details

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 421

• Message text: Enter a port name

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 IDOC_ADAPTER421 - Enter a port name ?

  The SAP error message IDOC_ADAPTER421, which states "Enter a port name," typically occurs in the context of IDoc processing when the system is unable to find a specified port for communication. This can happen during the configuration of IDoc interfaces or when trying to send or receive IDocs.
  
  Cause:
  
  Missing Port Configuration: The port that is supposed to be used for IDoc communication is not defined in the system.
  Incorrect Port Name: The port name specified in the IDoc processing configuration is incorrect or does not exist.
  Transport Layer Issues: There may be issues with the transport layer settings that prevent the system from recognizing the port.
  User Authorization: The user may not have the necessary authorizations to access the port configuration.
  
  
  Solution:
  
  
  Check Port Configuration:
  
  Go to transaction code WE21 (IDoc Interface: Port Definition) in SAP.
  Verify that the port you intend to use is correctly defined. If it is missing, create a new port definition.
  
  
  
  Verify Port Name:
  
  Ensure