Hello,
I am using shopify plus, I want to customize checkout page. but as shopify have announced that checkout.liquid file will be deprecated on August 13, 2024. So i want to customize this design with checkout extensibility.
As per design, all things are cleared that reedem and similar product section can be added with apps , but i have issue with Need help section ( attach ss) in the bottom of sidebar.
Question is, how i can add this section , where to add this kind of custom fields section , as checkout.liquid will be deprecated so where we can add this custom section in checkout page.
Can anyone help with this ?
I actually also still on struggle with this things
But I believe this video will help u a bit to develop the extension checkout ui for it
https://www.youtube.com/watch?v=NR4MLaaZeMA
Hope it can help a bit 
Thanks for response, I have checked this video earlier,
All things are cleared that we can add widgets/app in checkout but what about the custom sections ? If i want to add new section of text then can we add that from checkout.liquid file ? or any other option ?
I think all text will add on the extension code, then after u deploy it into your app, you can move that extension that show text to anywhere inside your checkout page.
checkout.liquid will removed next year, so all things to customize checkout can be done all by creating extension
