Important: Please do not skip any step, to ensure that the connection is successful.
Step 1: Twilio WhatsApp account + Rasayel subscription
First, make sure you have a WhatsApp account with Twilio. If you don't, read this:
Step 2: Add Twilio WhatsApp channel
In your Rasayel dashboard, Select Channels, and then click on WhatsApp
On the next page, click on the Twilio WhatsApp icon, as shown below
You should see the following:
Step 3: Copy Twilio account settings into Rasayel
3.1. Go to your Twilio dashboard: https://www.twilio.com/console
3.2. Copy your Account SID and Auth Token, and paste them into the Rasayel setup page.

3.3. Go to your Twilio phone number settings page: https://www.twilio.com/console/phone-numbers/incoming
3.4. Select your WhatsApp number, and copy the Phone Number and Phone Number SID:

3.5. Paste all of the above into the Rasayel Twilio WhatsApp setup page, and click on Proceed to next step
Step 4: Copy Rasayel Webhook URL into Twilio
Once you've activated the channel, Rasayel will generate a Webhook URL:
Go to your Twilio Programmable Messaging → WhatsApp Senders section: https://www.twilio.com/console/sms/whatsapp/senders
Select your WhatsApp number, and paste the same Octopods Webhook URL in all 3 areas. This is extremely important:

Don't forget to save:

That's it!
Your Twilio WhatsApp account is now connected to Rasayel.