https://apps.shopify.com/checkout-blocks?surface_detail=coderally&surface_inter_position=1&surface_intra_position=1&surface_type=app_details
Shopify Checkout Blocks - Customize your Checkout, Thank you and Order status pages | Shopify App...
Customize Checkout, Thank you, and Order status pages with banners, buttons, images, text, and more.
shopify checkout blocksthank you
https://apps.shopify.com/simple-po-box-blocker
Simple PO Box Blocker - Blocks PO Boxes and products at checkout to prevent issues | Shopify App...
Prevent failed deliveries by blocking PO Boxes and restricted products during checkout. Ensure valid addresses and control which items can be shipped.