Issue Linking WhatsApp Number with Meta Developer for Business API & Twilio Integration

Hi everyone,

I’m trying to set up WhatsApp Business API using Meta for Developers, and connect it to Twilio for automation purposes — but I’ve run into a few issues and would really appreciate your help.

Here’s what I’ve tried so far:

I attempted to register my WhatsApp number on Meta Business Manager, but I never receive the verification code.
I’ve made sure the number is not linked to any other WhatsApp account, and I tried switching browsers and devices — still nothing.
I’ve watched multiple tutorials, but most are outdated or not very clear.
I already have an active Twilio account, but I can’t proceed with linking it to Meta since the first step (number verification) fails.

My questions:

Are there any specific settings or steps I need to double-check so Meta can successfully send me the verification code?
Is there a reliable way to link Twilio directly with WhatsApp Business if verification through Meta is not working?
Do you recommend any up-to-date resources or documentation to set this up correctly?

Any guidance or insights from someone who’s done this before would be a huge help. Thanks in advance 🙏

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