Is there a service for distributing unique promotional codes to VK subscribers?

Question

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There is a list of unique promo codes.
Is there a service (chatbot?) that would allow distributing one promotional code to subscribers of a group in VK when subscribing to a newsletter?

Answer 1

Chatfuel has a Coupon Generator bot. With it, you can issue codes from a Google spreadsheet. Just make it according to their pattern.