Step 1: Go to 'Integrations' and click 'Marketing Emails' on the right.

Step 2: Click on connect button next to 'Sendiio'. 

Step 3: Log in to your Sendiio account, click on the top right username to navigate 'My Account'.

Step 4: On the 'My Account' page, you'll notice in the last API Token & API Secret. Copy that.

Step 7: Now, go back to your Sumopreneur account, and you will see a pop-up where you'll ask for Name, API Token, and  API Secret.

Give a name to your integration. 

And Paste the copied API Token & API Secret and click the update button to connect the service.