Google Apps Script doGet function limitation

We’re trying to run 2 functions within Google Scripts as we’re planning to use more than one API URL. However, per AI the code.gs codes are fine, but as we did further research on Google, looks like there’s a limitation for Web App on Google Apps Script that AI didn’t pick up which is Apps Script does not allow selecting a second function for a Web App. We’ll troubleshoot this by using one function, but with multiple actions it looks like.