Blog
- Tutorial
Webhook HMAC Replay Protection: Timestamps, Retries, and Idempotency
Prevent replayed webhook requests by verifying the RFC 3339 timestamp and raw-body HMAC-SHA256 signature, then deduplicate legitimate retries by event ID.
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WhatsApp Embedded Signup v4 Migration: A Coexistence Checklist Before October 15, 2026
Meta will retire Embedded Signup v2 on October 15, 2026. Migrate WhatsApp Coexistence onboarding to v4 with this configuration, webhook, callback, and rollout checklist.
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Can Unverified LINE MINI Apps Send Service Messages? 2026 Limits and Review Checklist
Unverified LINE MINI Apps can test service messages only in a Developing channel; production use requires verification. Compare the limits and prepare for review.
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How to Track WhatsApp Service Message Charges Before October 1, 2026
Build a pre-launch measurement plan for WhatsApp's October 1, 2026 service-message billing with Pricing Analytics and status webhooks—without confusing conversations, message categories, or AI-agent charges.
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TikTok Shop 4PL Address Masking Explained: Separate Order PII From Support Identity
TikTok Shop masks recipient_address fields for US 3PL and 4PL orders in specific order states, with broader masking for FBT. Learn what the rule actually covers and why support identity should not depend on order PII.
Read more → - Comparison
TikTok Shop room_id Live Orders: Why Attribution Still Needs a Separate Inbound Queue
TikTok Shop's July 8 Order API update adds room_id to selected responses so sellers can connect order lines to LIVE sessions. That helps attribution, but it does not replace a signed inbound message queue.
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LINE Bot MCP Server Is a Tool Layer, Not Your Cross-Channel Inbox
LINE's official MCP work makes AI agents more useful inside a LINE Official Account, but cross-channel support still needs a signed inbound event stream before any agent takes action.
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WhatsApp Calling API Recording and Transcription: Keep Chat Intake Separate From Call Intelligence
Meta added call recording and transcription guides to the WhatsApp Business Calling API. Here is why support teams should treat call intelligence and chat intake as two separate integration layers.
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X OAuth Outage Drill: How a Small Team Kept DMs in a Signed Inbound Queue
X logged a July 2026 OAuth and /2/users/me incident. Here is the incident-drill pattern a small support team used to keep X, WhatsApp, and LINE messages flowing into one signed inbound queue.
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Build an n8n WhatsApp AI Agent From a Signed Inbound Webhook
n8n is great for AI workflows, but WhatsApp support needs a reliable inbound event stream first. Here is how to connect UnifyPort's signed message.received webhook to an n8n production workflow.
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