UniSender allows you to create complex email marketing campaigns.
Go to Settings → Email Marketing.
Select and enter the API access key.
Select Integrations and API → copy the API key.
Paste the copied API key to Flexbe modal. Then select a contact list.
To create contact lists for various campaigns in UniSender, go to Contacts → Contact lists.
Your contact lists integrate automatically with Flexbe. If you create a new list on Flexbe, it will appear in UniSender as well.
The integration with UniSender is complete.