You can export into an existing Instantly campaign, or let Twain create a new one during export (see Step 3).

If you create it yourself, you don't need to set up any email steps. Leave the campaign empty for now.

In Twain, open a campaign where the copy is finalized.

Click Export (or Export Leads), then choose Instantly. If it isn't listed directly, click More first.

If this is your first time connecting: you'll be prompted to enter your Instantly API key. Have it ready.

If you've already connected before, you'll go straight to campaign selection.

Pick an existing campaign under Existing, or switch to New campaign and enter a name to have Twain create it in Instantly.

Check the variable names for each step. Twain names them by channel, e.g. Email 1, Email 2, plus Subject 1 for the subject line.

Click Export Leads. This may take a moment.

Open your campaign in Instantly.

If Twain created the campaign: the email steps and variables are already in place. Connect your sending accounts and check the schedule. New campaigns get a default Mon to Fri, 9:00 to 17:00 window, so make sure the timezone matches your audience.

If you exported into an existing campaign: for each step, click into it, click Variables and select the matching Twain variable (Email 1, Email 2, …). For the subject line, select Subject 1.

In both cases, add your signature. You can find all available variables in the variables panel.

Click Preview and select a lead to see exactly how the messages will appear.

Repeat this for each step to confirm personalization is correct.

Once everything looks good, save and launch your campaign.