How To Fix 00477 - Communication system error: confirm failed

00477 - Overview

• Message type: E = Error

• Message class: 00 -

• Message number: 477

• Message text: Communication system error: confirm failed

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message 00477 - Communication system error: confirm failed ?

  The SAP error message "00477 Communication system error: confirm failed" typically indicates a problem with the communication between the SAP system and an external system or service. This error can occur in various contexts, such as during the execution of remote function calls (RFC), when using the SAP Gateway, or when interacting with external applications.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the external system.
  Configuration Errors: Incorrect configuration settings in the RFC destination or in the communication parameters can lead to this error.
  Timeouts: If the external system takes too long to respond, the SAP system may time out and generate this error.
  Authorization Issues: The user or service account may not have the necessary permissions to perform the requested operation.
  Service Unavailability: The external service or system may be down or not reachable.
  Version Mismatch: Incompatibility between the SAP system and the external system due to different versions