How to Rebuild Fiori Custom Themes after Upgrade

After upgrading an ABAP system to a higher support package (SP) or applying a patch for one of the supported UI technologies, user may need to rebuild the stylesheet definitions of the theme.

This can also lead to rendering issues. To prevent these problems, you need to rebuild the theme.

So to do it, launch the theme designer using the transaction code /n/UI5/THEME_DESIGNER or you can directly open it with URL, https://[HOSTNAME:PORT]/sap/bc/theming/theme-designer?sap-client=[your-client]

There, you will see that the status is “Upgrade” state. All you need to do is click on “Rebuild,” and it will automatically rebuild the theme for you.


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