The cart reaches WhatsApp only if we know which number the customer from the live has. There are three ways, all automatic.
First: the customer writes to you on WhatsApp and the bot asks for her TikTok or Instagram @username; it links it to the number and sends her reservations.
Second: the customer writes in the live, next to the code, the last four digits of her phone (for example “103 4821”); if exactly one customer has those digits, she is linked automatically.
Third: the bot sends her a short code (like LS-4821) to write in the live; it also works on TikTok, where there is no private reply to comments.
After the first link, every future cart arrives automatically. If it still does not work: an @username already linked to another number blocks linking; fix it from the customer’s file under “Identities”.