How To Fix UPWB143 - Names for Web interfaces beginning with Y or Z in customer namespace

UPWB143 - Overview

• Message type: E = Error

• Message class: UPWB - Messages for Development Class UPWB

• Message number: 143

• Message text: Names for Web interfaces beginning with Y or Z in customer namespace

What causes this issue?

The namespace for Web interfaces is determined as follows:
Web Interfaces, whose names begin with Y or Z, belong to customers.
All other Web Interfaces belong to SAP.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPWB143 - Names for Web interfaces beginning with Y or Z in customer namespace ?

  The SAP error message UPWB143 indicates that there is an issue with the naming convention of web interfaces in the SAP system. Specifically, it states that names for web interfaces should not begin with the letters "Y" or "Z" when they are in the customer namespace. This is a restriction imposed by SAP to ensure that custom developments do not conflict with standard SAP objects.
  
  Cause:
  The error occurs when a developer attempts to create or use a web interface that starts with "Y" or "Z" in the customer namespace. In SAP, the namespaces are typically divided into standard (SAP) and customer-defined (Y and Z). The restriction is in place to maintain consistency and avoid potential conflicts with future SAP developments.
  
  Solution:
  To resolve this error, you should rename the web interface to ensure that it does not start with "Y" or "Z". Here are the steps you can take:
  
  Identify the Web Interface: Determine