How To Fix SF339 - Choose a structure name that starts with "Y" or "Z"

SF339 - Overview

• Message type: E = Error

• Message class: SF - SAPfind: Message Texts

• Message number: 339

• Message text: Choose a structure name that starts with "Y" or "Z"

What causes this issue?

You tried to create a structure whose name falls into the area reserved
for SAP.

System Response

The structure was not created.

How to fix this error?

The names of customer structures must begin with the letter "Y" or "Z".
Please choose a name conforming to this convention.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SF339 - Choose a structure name that starts with "Y" or "Z" ?

  The SAP error message SF339, which states "Choose a structure name that starts with 'Y' or 'Z'," typically occurs when you are trying to create a custom structure in the SAP system. In SAP, custom objects such as structures, tables, and programs are required to start with the letters "Y" or "Z" to differentiate them from standard SAP objects. This naming convention helps avoid conflicts with SAP's standard objects and ensures that custom developments are easily identifiable.
  
  Cause:
  The error occurs when:
  
  You attempt to create a new structure (or other custom object) using a name that does not start with "Y" or "Z".
  The naming convention is not followed, which is a requirement in SAP to maintain the integrity of the system and avoid naming conflicts.
  
  
  Solution:
  To resolve this error, you should:
  
  Rename the Structure: When creating a new structure, ensure that the name you choose starts with either "Y" or "Z". For example, instead