Blog
Articles, tutorials, and announcements from the UnifyPort team.
- Guide
LINE Login and Messaging API User IDs Differ? Check the Provider
Diagnose mismatched LINE user IDs across Login and Messaging API channels, check provider ownership, and keep CRM identity separate from message routing.
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LINE Reply Token Expired? Handle Slow Replies Without Duplicate Sends
Diagnose expired or reused LINE reply tokens, handle webhook redelivery, and decide when a delayed response should become a separate push message.
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WhatsApp Conversation List Missing Chats? Check the Label Filter
UnifyPort's WhatsApp conversation list defaults to starred chats when label_id is omitted. Diagnose filters, pagination, and missing chats without assuming a complete archive.
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LINE X-Line-Retry-Key: Retry Timed-Out Sends Without Duplicates
Handle LINE Messaging API send timeouts with a persisted retry key, unchanged requests, 409 acceptance checks, and a bounded retry window.
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Telegram getFile: Recover Expired Download Links Safely
Fix Telegram bot file downloads by separating file_id, file_unique_id, and file_path, refreshing expired links, and keeping unified webhook media recovery separate.
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Telegram Inline Button Keeps Loading? Check answerCallbackQuery
Fix a Telegram callback button that keeps loading: receive callback_query, answer the correct query ID, and separate button feedback from business completion.
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Telegram Group Migrated to Supergroup: Update Chat IDs Safely
Handle Telegram migrate_to_chat_id and migrate_from_chat_id without losing routing or corrupting message history. Separate destination changes from retries.
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Telegram getUpdates Offset: Prevent Duplicate and Lost Updates
Understand when Telegram confirms updates, then design a durable polling checkpoint that survives restarts without skipping work or repeating side effects.
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Telegram getWebhookInfo: Diagnose Pending Updates and Delivery Errors
Read pending_update_count, last_error_date, and last_error_message correctly. Separate Telegram webhook delivery failures from downstream processing problems.
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Telegram Bot Not Receiving Group Messages? Check Privacy Mode
Diagnose a Telegram bot that receives private messages but misses group chat: check privacy mode, group role, re-adding the bot, and allowed_updates.
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X Chat DM Troubleshooting: Login, Keys, and Signatures
Diagnose X Chat send and decrypt failures by separating account access, conversation-key versions, message signatures, and webhook delivery.
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LINE Service Messages Explained: When to Use Them and When to Use a Webhook
LINE service messages are LINE MINI App notifications tied to a user action. Learn the official template and token model, then decide when a signed inbound webhook is the better support layer.
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How to Implement a LINE MINI App Custom Action Button
Implement a LINE MINI App custom action button with liff.shareTargetPicker(), a compliant Flex Message, permanent links, and clear success, cancel, and error handling.
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Use Multiple Tools With One LINE Official Account: Token and Webhook Checklist
One LINE Official Account can use multiple Messaging API tools, but they share one channel, one webhook URL, token limits, rate limits, and feature quotas. Use this checklist before connecting another tool.
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WhatsApp Account Under Review? An Incident-Response Checklist
Meta restored WhatsApp accounts mistakenly placed under review on August 3, 2026. Use this checklist to separate a platform incident from policy enforcement or an integration fault and recover safely.
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How to Pass LINE MINI App Verification Review: Submission Checklist and Common Rejection Reasons
LINE MINI App verification review normally takes one to two weeks. Align provider identity, privacy policy, and test materials, and avoid the common rejection reasons before requesting review.
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WhatsApp Account Model Evolution: What the WAAC and Messaging Account Split Means in 2026
Meta's WhatsApp Account Model Evolution splits the old WABA into a WAAC (identity and phone number) and a Messaging Account (templates, billing, webhooks). Here is what changes for a phone number shared across multiple partners, the 2026-2028 timeline, and the December 31, 2026 paid_messaging_account_id deadline.
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Telegram Bot API 10.2 Upgrade Checklist: Rich Messages Media, Ephemeral Edits, and Communities
Telegram released Bot API 10.2 on July 14, 2026. Use this checklist to upgrade bot code for rich message media, ephemeral message edits, and Communities without breaking inbound handling.
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LINE MINI App Service Message Template Review: A Pre-Submission Checklist
Prepare a LINE MINI App service message template for review with an action-linked use case, valid variables, permanent links, simulator tests, and a safe production handoff.
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Can Third-Party AI Assistants Use WhatsApp in the EU? The 2026 Interim Measures Explained
The EU ordered Meta to restore free WhatsApp access for rival general-purpose AI assistants while its antitrust investigation continues. Learn what changed, where it applies, and what teams still need to verify.
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TikTok Shop Customer Service API Approval: Eligibility Checklist for 2026
Check TikTok Shop Customer Service API approval requirements: live chat evidence, order and after-sales integrations, scale thresholds, seller authorization, and the scope you actually receive.
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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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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.
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LINE MINI App Fees Started July 1: Keep Payments Separate From Inbound Support
LINE started charging service fees for MINI App in-app purchases in July 2026. Here is how small teams should separate Japan-only payment flows from real-time LINE inbound support.
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LINE Rich Menu Insights Are Analytics, Not an Inbound Router
LINE added rich menu insight endpoints after sharply lowering the rich menu list rate limit. Here is how small teams should separate analytics polling from live inbound message routing.
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WhatsApp Coexistence Lets You Run the Business App and Cloud API on the Same Number — Do You Actually Need Both?
Meta's Coexistence feature syncs the WhatsApp Business App and Cloud API on one phone number. Here's what it requires, what it solves, and why inbound-only teams may not need either half.
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X Banned Automated DMs in 2026 — How Inbound Support Teams Still Receive and Route Them
X's 2026 rules prohibit auto-DMs and bulk programmatic outreach, and the API meter now runs per read. If your team only needs to receive DMs and mentions, here's why the crackdown doesn't apply to you — and how to route inbound messages without sending a single automated DM.
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What Countries Use LINE? Official Account Limits and Options Outside Japan, Taiwan, and Thailand
Looking for a list of countries that use LINE app or wondering what countries use LINE for customer messaging? LINE users are global, but Official Account verification is limited to Japan, Taiwan, and Thailand. Here are the paths for everyone else.
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WhatsApp's BSUID Migration Starts July 7 — A Five-Point Checklist for Inbound-Only Teams
Meta is replacing phone numbers with Business-Scoped User IDs in WhatsApp webhook payloads. Here's a checklist of what breaks, what doesn't, and which teams can skip the migration entirely.
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TikTok DM API: Why There Is No Official Endpoint and How Teams Receive Messages Anyway
TikTok DM API access is not available in the general developer platform: official APIs cannot send or receive direct messages, and TikTok Shop messaging is gated. Here's the path teams use to receive TikTok DMs programmatically.
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How to Receive LINE Messages Without Registering an Official Account
LINE's Messaging API requires an Official Account — a registration process that can take up to 60 business days and is restricted to four countries. If all you need is to receive inbound LINE messages, here's the path that skips the queue.
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One Webhook for LINE, Zalo, and X: How Southeast Asia Teams Handle Three Platforms at Once
Running customer support across LINE, Zalo, and X means three separate integrations, three schemas, and three sets of credentials. Here's how teams in Southeast Asia collapsed all of it into a single webhook endpoint.
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WhatsApp Banned Third-Party AI Chatbots — Here's What Teams Are Doing Instead
Meta's January 2026 ban blocks ChatGPT, Copilot, and Perplexity from WhatsApp Business API. If your AI bot stopped working, here's why — and the path that still lets you run your own AI on incoming WhatsApp messages.
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