In S/4HANA Conversion Projects (aka. Brownfield) one showstopper can be the uninstallation of Add-Ons. Often this causes trouble during SUM Procedure. There is a little section for this in the Convesion Guide (Chapter 3.5) - see https://help.sap.com/doc/2b87656c4eee4284a5eb8976c0fe88fc/1909.000/en-US/CONV_OP1909.pdf
In order to check this upfront and even simulate it, SAP developed a "Add-On Uninstallation Simulation Tool". Introduced with SPAM Version 74 this Simulation Tool is available. With this Tool you can only simulate not delete Add-Ons!
All prerequisites are described here: https://help.sap.com/viewer/1057be4036894efeb69007cc3e0cb3c0/LATEST/en-US/95bcbcbdfe644ba3832a2d6e65...
Transaction Code: SIM_UNINST
Choose your component and click "Simulate" and you can see the results.
Example 1: Add-On GBX01HR - Fiori X1 HCM
This is relatively easy and a corresponding SAP Notes is already linked with further information. All operations are already predefined and no further action is required.
Already simulated components are marked with a little flag in column "Simulation". Click on the flag and see the results of your Simulation.
Example 2: Add-On UIAPFI70 - UI SFIN
This is a little more effort, because there is no predefined operation. Hence you have to simulate your selected operation. In edit mode you can select operation "ignore / delete" for each line.
Once done you can simulate. In the results your operation is considered (I chose "delete"). In this case it even gives you the proposed coding for a "Plugin Class" that needs to be created for deletion, which is very helpful.
Example 3: 3rd Party Add-On - OpenText
Also Third Party Add-Ons are recognized by the Tool and can be simulated.
Even coding for plugin class is generated.
Cheers Marco
In order to check this upfront and even simulate it, SAP developed a "Add-On Uninstallation Simulation Tool". Introduced with SPAM Version 74 this Simulation Tool is available. With this Tool you can only simulate not delete Add-Ons!
All prerequisites are described here: https://help.sap.com/viewer/1057be4036894efeb69007cc3e0cb3c0/LATEST/en-US/95bcbcbdfe644ba3832a2d6e65...
Transaction Code: SIM_UNINST
Choose your component and click "Simulate" and you can see the results.
Example 1: Add-On GBX01HR - Fiori X1 HCM
This is relatively easy and a corresponding SAP Notes is already linked with further information. All operations are already predefined and no further action is required.
Already simulated components are marked with a little flag in column "Simulation". Click on the flag and see the results of your Simulation.
Example 2: Add-On UIAPFI70 - UI SFIN
This is a little more effort, because there is no predefined operation. Hence you have to simulate your selected operation. In edit mode you can select operation "ignore / delete" for each line.
Once done you can simulate. In the results your operation is considered (I chose "delete"). In this case it even gives you the proposed coding for a "Plugin Class" that needs to be created for deletion, which is very helpful.
Example 3: 3rd Party Add-On - OpenText
Also Third Party Add-Ons are recognized by the Tool and can be simulated.
Even coding for plugin class is generated.
Cheers Marco
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