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Get reliable and affordable WhatsApp Business API services from Hashtag SMS, one of India's trusted WhatsApp marketing and business messaging providers. We help businesses connect with customers through official WhatsApp Business API, Bulk SMS, RCS Messaging, Voice Calls, and Email Marketing solutions at competitive prices. Our platform is designed to help businesses automate customer communication, send promotional and transactional messages, manage campaigns, and improve customer engagement. Whether you are a startup, SME, or enterprise, we provide scalable messaging solutions backed by dedicated support. At Hashtag SMS, our experienced technical team handles the complete WhatsApp Business API onboarding process, from account setup and verification to API activation and campaign deployment. We ensure a smooth and hassle-free setup experience so you can start communicating with your customers quickly and efficiently. Documents Required for WhatsApp Business API Registration: GST Certificate or Business Registration Certificate PAN Card of the Business Active Website or Business Social Media Page Business Email ID Mobile Number for Verification Facebook Business Manager Access Contact Hashtag SMS today to get started with official WhatsApp Business API solutions and grow your business through smarter customer communication.