How To Fix /SCWM/CHM_IF121 - Communication error: &1

/SCWM/CHM_IF121 - Overview

• Message type: E = Error

• Message class: /SCWM/CHM_IF -

• Message number: 121

• Message text: Communication error: &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

/SCWM/CHM_IF121 - Details

• The SAP error message /SCWM/CHM_IF121 Communication error: &1 typically occurs in the context of the Extended Warehouse Management (EWM) module, particularly when there is an issue with communication between the EWM system and an external system or interface. The &1 in the error message usually represents a specific error code or message that provides more detail about the nature of the communication error.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP EWM system and the external system (e.g., a third-party logistics provider, an external warehouse management system, etc.).
  Configuration Errors: Incorrect configuration settings in the EWM system or the external system can lead to communication failures.
  Service Unavailability: The external service or API that EWM is trying to communicate with may be down or unavailable.
  Authorization Issues: The user or system may not have the necessary permissions to access the external system.
  Data Format Issues: The data being sent or received may