Hi! There is a limit to the number of variables that can be shown in the popup list in the action editor, and this limit is set by default to 1000. However, you can increase this limit by changing the value of the "Maximum Number of Variables" setting in the "General" tab of the Preferences window. As for removing the limit entirely, I'm afraid that's impossible. However, you can increase the limit to a very high number so that it effectively becomes unlimited. An easy way to solve all your problems would be to install the plugin "
Shopify popup," which is easy to use and set up. Good luck!