Multiple discount codes at checkout is not simply a “request” by merchants, but it is essential to doing business during this pandemic.
I have researched the forums, and merchants have been asking for this feature for at least 4 years. Every retail site aside from Shopify allows multiple codes at checkout, and yet, hundreds (maybe thousands) of merchants asking for this on this forum only gets a reply from Shopify like “Thanks! We’ll make a note of your request!”
This functionality needs to be implemented immediately to help save businesses. I hope whoever is reading from Shopify this takes doesn’t take this with a grain of salt.