How To Fix S~127 - Path to & (&) with event & (&), but no reverse path

S~127 - Overview

• Message type: E = Error

• Message class: S~ - Repository API Business Navigator

• Message number: 127

• Message text: Path to & (&) with event & (&), but no reverse path

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.

S~127 - Details

• The SAP error message S~127 typically indicates that there is a problem with the event handling in the SAP system, specifically related to the path and event configuration in the workflow or process chain. This error suggests that there is a defined path to an event, but there is no corresponding reverse path defined, which can lead to issues in the workflow execution.
  
  Cause:
  
  Missing Reverse Path: The primary cause of this error is that while a forward path to an event is defined, the reverse path (which is necessary for the workflow to return to a previous state or to handle the event properly) is not defined.
  
  Configuration Issues: There may be misconfigurations in the workflow or event management settings that prevent the system from recognizing the reverse path.
  Inconsistent Workflow Design: The workflow design may not be consistent, leading to situations where events are not properly linked.
  
  
  Solution:
  
  Define the Reverse Path: Check the