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Developer resources

Useful guides, not filler.

Practical references for formatting, bulk validation and integration.

WhatsApp Number Format Guide

Format international WhatsApp numbers correctly before validation or messaging.

Format Brazilian WhatsApp numbers with +55, the DDD area code and the mobile ninth digit.

Prepare CSV or TXT lists for bulk WhatsApp number validation.

Understand the profile and business fields returned by the WhatsApp Profile Data API.

Choose between registration validation and profile enrichment for the right workflow.

Connect API Factory’s WhatsApp validation endpoint to Make.com automation scenarios.

Call API Factory from cURL, C#, Python, Node.js and PHP.