AutoLetter needs customer data to send letters. You have several options:

• Billbee -- Connect your Billbee account to automatically import order data. AutoLetter syncs new orders at your configured interval.
• Shopify -- Install the AutoLetter app in your Shopify store. Customer data is transferred automatically.
• CSV Import -- Upload a CSV file with customer addresses. Ideal for one-time mailings or if you don't use a shop integration.
• API -- Send customer data directly to AutoLetter via the REST API. Perfect for custom systems or individual automations.

Tip: Start with the integration that best fits your existing workflow. You can add more data sources at any time.

Design the letter your customers will receive. You have two options:

• Visual Editor: Create your template directly in AutoLetter. You can add text, images, QR codes, and placeholders for personalized content (e.g., customer name, last order). Choose from various fonts, adjust colors and layout.
• PDF Upload: Upload a pre-designed PDF template. AutoLetter automatically inserts the recipient address and optional placeholders.

Make sure your template includes a sender address. You can set this up under "Shipping Addresses" in your dashboard.

Create a new campaign and configure who should receive letters and how much you want to spend:

• Campaign type: Choose between a one-time campaign (e.g., seasonal promotion) or a recurring campaign (e.g., automatically after each order).
• Target audience: Set filters to reach exactly the right recipients -- e.g., by country, order value, time since last order, or customer group.
• Budget: Set a daily budget or a total budget. AutoLetter automatically stops sending once the budget is reached. This keeps you in full control of your costs.
• Assign template: Select the letter template you created in the previous step.

Once your campaign is active, AutoLetter takes care of the rest. Letters are automatically printed and sent via DHL E-PostBusiness. You don't need to worry about anything -- no printing, no stuffing envelopes, no trips to the post office.

Depending on the campaign type, this happens either immediately (one-time) or continuously as new customers meet the filter criteria (recurring).

In the dashboard, you can see your campaign performance in real time:

• Letters sent -- how many letters were printed and shipped
• QR code scans -- how often the QR codes on your letters were scanned
• Conversions -- how many recipients placed an order after receiving the letter
• Cost per acquisition (CPA) -- how much each acquired customer costs you
• Revenue -- how much revenue the campaign generated

Use this data to optimize your campaigns: adjust target audience filters, budget, or template to achieve the best results.