This documentation is not using the current rendering mechanism and will be deleted by December 31st, 2020. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.

After installing the extension my headerData is gone/corrupted. What’s wrong?

Simulatebe uses “page.headerData.9586” to include its configuration. If you are already using this for your own configuration, you need to change your values. You can check your configuration in the TypoScript Object Browser: View the part “Setup” and open the tree.