On this page you will find common error sources, for which we get weekly requests. Most of the error sources are due to the installation and refer to the
APP_URL is wrong in the .env
On the server there is an .env file where an important URL is stored at the variable APP_URL. This URL is used so that the external app contains a URL from your Shopware store for communication back (this is an external Shopware cloud app).
Unfortunately, this URL is almost always set incorrectly for self-hosted stores - already by the installer. The URL could be similarly wrong as here:
APP_URL="http://127.0.0.1"
It is important to use the URL of the store for the correction. It is also important to note http & https. In some cases, it can also be a different URL to the admin of the store (eg Shopware PWA or multiple store domains within one installation). Correct would be e.g.
APP_URL="https://www.my-shop.com"
After the change, save the file once and clear the store cache. Now a new window will appear in the admin because the URL has changed. Here would be a way to tell all external cloud apps that the URL has changed because the store has "moved". There is a little more at this point: https://developer.shopware.com/docs/guides/plugins/apps/app-base-guide#handling-the-migration-of-shops
Finally, reinstall the app again. After that everything should work as far as possible.