How do tiffin services manage orders on WhatsApp?

A simple setup is the free WhatsApp Business app: send the daily menu to a broadcast list, let subscribers reply to confirm, skip or pause, and use labels to track who has paid.

• Daily menu: a broadcast list holds up to 256 contacts, and only people who saved your number receive it. Replies arrive as separate chats.
• More than 256 subscribers: make more lists. You can create as many broadcast lists as you like.
• Skip, pause, renew: subscribers reply in the chat and you mark it with a label. You can create up to 20 labels.
• Repeat questions: save answers about menu, timing and payment as quick replies. You can store up to 50.
• Groups: use a broadcast list for the menu, and a group only if you want subscribers to talk to each other.