If you want to add SendinBlue form in AMP then first you need to purchase and install Opt-in Forms for AMP plugin.
After installing you will find this option in WordPress Dashboard -> AMP optin -> Add New optin -> select “ SendinBlue ” option -> now you need form URL.

Follow the simple steps to get all this form URL from SendinBlue Account.
Step 1: First of all Signup/login at sendinblue.
Step 2: After Signup/login sendinblue click on the conatcts option in dashboard.

Step 3: click on Form option.

Step 4: Create a new subscription form other you can select the existing form.

Step 5: In this field, you can enter the form name and click on the next button.

Step 6: Here you select the form design.

Step 7: In this option, you must choose at least one list, but you may also select multiple lists. Subscribers will be saved in these lists.

Step 8: In this option you can create list.

Step 9: You need to select the list name.

Step 10: In settings click on the next button.

Step 11: In this field, you need to enter Messages and click on next button.

Step 12: In Share, you need to copy the embed iframe URL and paste in Notepad select only url.

Step 13: Paste this URL in AMP Opt-in form.
Step 14: Now, select SendinBlue from the Drop down and enters the form URL and copy the shortcode and place where you want to display the SendinBlue Form.

The Output of SendinBlue in AMP
Make sure you need to fill this form and then click on the submit button after that you will get the “Subscription successful” message.

That’s it for this tutorial!
We hope it helped you. If you have any feedback or questions, then please share them in the comments section below.