How To Fix TR447 - Transport layers must begin with 'Y' or 'Z' (customer namespace)

TR447 - Overview

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 447

• Message text: Transport layers must begin with 'Y' or 'Z' (customer namespace)

What causes this issue?

In your SAP System you can only define new transport layers that begin
with the letters <LS>Y</> or <LS>Z</> because the system is configured
customer system.

System Response

The function terminates.

How to fix this error?

For new transport layers, only choose names that begin with the letters
<LS>Y</> or <LS>Z</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR447 - Transport layers must begin with 'Y' or 'Z' (customer namespace) ?

  The SAP error message TR447 indicates that you are trying to transport an object that is not in the correct namespace. In SAP, customer-specific objects should be created in the customer namespace, which is typically defined by the letters 'Y' or 'Z'. This is a safeguard to ensure that customer developments do not interfere with standard SAP objects.
  
  Cause:
  The error occurs when:
  
  You attempt to transport an object that is not in the customer namespace (i.e., it starts with letters other than 'Y' or 'Z').
  You are trying to transport a standard SAP object or an object from a different namespace that is not allowed for customer modifications.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Object Namespace: Verify the namespace of the object you are trying to transport. Ensure that it starts with 'Y' or 'Z'.
  
  
  Create Objects in Customer Namespace: If you are developing new objects, make sure to create them