How To Fix ATO_CUSTOMER800 - To take effect in subsequent systems, changes need to be transported.

ATO_CUSTOMER800 - Overview

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 800

• Message text: To take effect in subsequent systems, changes need to be transported.

What causes this issue?

You need to transport extension items from one system landscape to
another with the Adaptation Transport Organizer (ATO) key user apps:

<ZH>Configure Software Packages </>and <ZH>Register Extensions for
Transport </>


<ZH>Export Software Collection</>

How to fix this error?

You are using Extensibility Apps for Key Users on the SAP Fiori
launchpad to extend applications and their UIs.
These extension items take effect only in the system in which they were
created. You can find an overview of all extension items in a system in
the Extensibility Inventory app. ATO apps are the entry point for
transporting extension items to other systems.

Extension items can be transported with the <ZH>Configure Software
Packages </>and <ZH>Register Extensions for Transport </>apps to be
productively available und usable.
For more information see:
https://help.sap.com->SAP S/4HANA->Enterprise Technology->SAP
Netweaver->General Functions for Key Users->SAP Fiori
Applications->Extensibility


To make the extension items available in other system, the items need to
be transported with the ATO infrastructure. You can export extension
items from one system with the Export Software Collection app and import
them into another system with the Import Collection app. You can find an
overview of all extension items in a system in the Extensibility
Inventory App.

To configure ATO see SAP Note 2283716 - <ZK>S/4HANA Key User Application
is not configured</> for more details.

Error message extract from SAP system. Copyright SAP SE.

ATO_CUSTOMER800 - Details

• The SAP error message ATO_CUSTOMER800 typically indicates that there are changes made in the development environment that need to be transported to the subsequent systems (like Quality Assurance or Production) for those changes to take effect. This message is often encountered in the context of configuration changes, custom developments, or adjustments made in the SAP system that are not yet reflected in the target systems.
  
  Cause:
  
  Untransported Changes: The most common cause is that changes made in the development system have not been captured in a transport request and subsequently moved to the target system.
  Configuration Changes: Changes in configuration settings that are not yet transported.
  Custom Development: Custom code or enhancements that have been developed but not yet transported.
  
  
  Solution:
  
  
  Create a Transport Request:
  
  If you have made changes in the development system, ensure that these changes are included in a transport request. You can do this by using transaction codes like SE09 or SE10 to