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    <title>WhaBuzz blog</title>
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    <description>Notes for developers building on the WhatsApp Cloud API: pricing, webhooks, templates, errors and migrations.</description>
    <language>en-IN</language>
    <lastBuildDate>Fri, 16 Oct 2026 03:30:00 GMT</lastBuildDate>
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      <title>WhatsApp Business API pricing in India</title>
      <link>https://whabuzz.com/blog/whatsapp-business-api-pricing-india/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>What the WhatsApp Business API costs in India from 1 Oct 2026: Meta's per-message rates, what a provider adds, and a worked monthly example.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Pricing and billing</category>
      <category>Cloud API basics</category>
    </item>
    <item>
      <title>BSP vs Tech Provider vs Cloud API</title>
      <link>https://whabuzz.com/blog/bsp-vs-tech-provider-vs-cloud-api/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>What a WhatsApp BSP (Solution Partner), a Tech Provider and a direct Cloud API integration mean, who bills what, and when going direct is better.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Cloud API basics</category>
      <category>Pricing and billing</category>
    </item>
    <item>
      <title>WhatsApp webhooks that never lose an event</title>
      <link>https://whabuzz.com/blog/whatsapp-webhook-reliability/</link>
      <guid isPermaLink="true">https://whabuzz.com/blog/whatsapp-webhook-reliability/</guid>
      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How to receive WhatsApp Cloud API webhooks without losing or double-processing events: signatures, retries, dedupe_key, seq and replay.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Webhooks</category>
      <category>Cloud API basics</category>
    </item>
    <item>
      <title>Stop Duplicate WhatsApp API Messages</title>
      <link>https://whabuzz.com/blog/whatsapp-api-idempotency/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>Why WhatsApp API sends get duplicated by timeouts and retries, and how WhaBuzz's Idempotency-Key header and webhook dedupe_key prevent double sends.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Cloud API basics</category>
      <category>Operations</category>
    </item>
    <item>
      <title>WhatsApp template approval and rejections</title>
      <link>https://whabuzz.com/blog/whatsapp-template-approval/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How Meta reviews WhatsApp message templates, the three categories, why templates get rejected, and how to catch the result through the API.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Templates</category>
    </item>
    <item>
      <title>The WhatsApp 24-hour window explained</title>
      <link>https://whabuzz.com/blog/whatsapp-24-hour-window/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How the WhatsApp customer service window works, the free entry point window, template rules, error 131047, and the 1 Oct 2026 billing changes.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Cloud API basics</category>
      <category>Templates</category>
      <category>Pricing and billing</category>
    </item>
    <item>
      <title>Move from WATI to your own Meta account</title>
      <link>https://whabuzz.com/blog/migrate-from-wati/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How to move a WhatsApp number from a BSP such as WATI to a Tech Provider setup on your own Meta account: ownership, templates, webhooks and cutover order.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Migration</category>
    </item>
    <item>
      <title>Move WhatsApp sending from Plivo to WhaBuzz</title>
      <link>https://whabuzz.com/blog/migrate-from-plivo-whatsapp/</link>
      <guid isPermaLink="true">https://whabuzz.com/blog/migrate-from-plivo-whatsapp/</guid>
      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How to move WhatsApp sending from Plivo's API to WhaBuzz: request shapes, webhooks, number migration and a safe cutover order.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Migration</category>
      <category>Cloud API basics</category>
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    <item>
      <title>WhatsApp API error codes and what to do</title>
      <link>https://whabuzz.com/blog/whatsapp-api-error-codes/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>The WhatsApp Cloud API error codes you will actually hit, Meta's meaning for each, whether to retry, and how WhaBuzz returns them verbatim.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Errors</category>
      <category>Cloud API basics</category>
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    <item>
      <title>Send WhatsApp Messages from Node.js</title>
      <link>https://whabuzz.com/blog/whatsapp-api-nodejs/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>Send a WhatsApp template and a text message from Node.js with the whabuzz npm package, verify signed webhooks and handle errors, with working code.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Node.js</category>
      <category>Cloud API basics</category>
    </item>
    <item>
      <title>Send WhatsApp Messages from Python</title>
      <link>https://whabuzz.com/blog/whatsapp-api-python/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>Send WhatsApp template and text messages from Python with plain requests against the WhaBuzz REST API, handle errors and verify webhooks with hmac.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Python</category>
      <category>Cloud API basics</category>
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    <item>
      <title>WhatsApp API for multi-tenant SaaS platforms</title>
      <link>https://whabuzz.com/blog/whatsapp-api-multi-tenant-saas/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>How a SaaS sends WhatsApp for many client businesses: one tenant per customer, Embedded Signup per number, separate webhooks and per-number billing.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Multi-tenant</category>
      <category>Cloud API basics</category>
    </item>
    <item>
      <title>WhatsApp API data residency in India</title>
      <link>https://whabuzz.com/blog/whatsapp-data-residency-india/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>What Meta says about Cloud API local storage in India, what it does not publish, where WhaBuzz stores data and how long each kind of data is kept.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Data and compliance</category>
      <category>Cloud API basics</category>
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    <item>
      <title>WhatsApp messaging limits and quality rating</title>
      <link>https://whabuzz.com/blog/whatsapp-quality-rating-messaging-limits/</link>
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      <pubDate>Fri, 16 Oct 2026 03:30:00 GMT</pubDate>
      <description>Meta's WhatsApp messaging limit tiers, throughput, the 131056 pair rate limit and quality rating, and how to pace sends so you stay inside them.</description>
      <dc:creator>Smaran Challapalli</dc:creator>
      <category>Operations</category>
      <category>Cloud API basics</category>
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