Step 1
Log in to your Sendinblue account.
Step 2:
In the upper right menu, select "SMTP & API"
Step 3:
Select and copy your "v3" API key:
Step 4:
Log in to your Wisepops account.
Step 5:
Open or create a popup with a sign-up form.
Step 6:
Click on your sign-up form.
Step 8:
In the left menu, click on Sync, then on the Sendinblue icon:
Step 9:
Paste your API key and click "Submit"
Step 10:
In the "list" menu, choose which list you'd like new subscribers to join:
And voila!