hello,
I have created a custom PHP app, and for that app, I have created a simple form with one textbox and button,
when I enter some text in the textbox then click on submit button, then that text is displayed on the checkout page of the storefront.
I don’t know how to interact with custom and checkout page?
developers, please help me with this.
how can I do this?
App Development in PHP(Laravel/React JS).