# Reddit r/microsaas: zero to 900 users via WhatsApp B2B groups - Canonical HTML: https://growth.iangoh.com/sources/reddit-r-microsaas-zero-to-900-users-via-whatsapp-b2b-groups-reddit-com/ - Original source: https://www.reddit.com/r/microsaas/comments/1ow6g5j/from_zero_to_900_users_in_just_15_days/ - Domain: reddit.com - Latest check: 2026-06-09 - Channels: B2B Communities, Community, Customer Discovery, Facebook Groups, Founder-Led Growth, Founder-Led Sales, Search, Trust Building, WhatsApp ## Cited GrowthDex tactics - [WhatsApp B2B Facebook and Google group discovery before paid ads](/growth-ideas/whatsapp-b2b-facebook-google-group-discovery-before-paid-ads/) - Find closed WhatsApp groups through Facebook and Google before buying traffic for a product whose ICP still needs sharper language. - [WhatsApp B2B manual replies before automation](/growth-ideas/whatsapp-b2b-manual-replies-before-automation/) - Keep early WhatsApp group outreach manual until the founder knows which objections, phrases, and use cases actually move signups. - [WhatsApp B2B niche group selection before blast](/growth-ideas/whatsapp-b2b-niche-group-selection-before-blast/) - Join WhatsApp groups where the exact buyer already discusses tools and workflow problems before posting any launch message. - [WhatsApp B2B two-week micro-value before soft mention](/growth-ideas/whatsapp-b2b-two-week-micro-value-before-soft-mention/) - Spend two to three weeks giving small useful answers in a WhatsApp group before making a soft product mention. ## Related reading - [GrowthDex Blog](/blog/) - [All growth ideas](/growth-ideas/index.md)