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Upload your customer data as a CSV file and instantly start personalized direct mail campaigns. Drag & drop, automatic mapping – done.
AutoLetter's CSV import makes data importing easier than ever – with intelligent automation.
Simply drag your CSV file into the upload area. Supported formats: CSV, TSV, and Excel (XLSX).
AutoLetter automatically recognizes columns like name, address, and zip code and maps them to the correct fields.
Duplicate entries are automatically detected and merged – no more double letters.
Addresses are checked for completeness and plausibility. Incorrect entries are flagged.
Download our CSV template to ensure your data is in the correct format.
Import thousands of contacts at once. Ideal for existing customer lists and one-time campaigns.
From upload to finished campaign – in just a few minutes.
Drag your CSV file into the upload area or click to select. Up to 100,000 entries per upload.
Review the automatic mapping and adjust if needed. First name, last name, address – everything is recognized.
Confirm the import and immediately launch your mail campaign. All contacts are instantly available.
AutoLetter automatically recognizes your data structure and maps the fields correctly.
Upload CSV, map fields, launch campaign – in just a few minutes.
AutoLetter supports CSV files (comma or semicolon separated), TSV files (tab separated), and Excel files (XLSX). The maximum file size is 50 MB.
You can import up to 100,000 contacts per upload. For larger datasets, we recommend using the REST API or multiple consecutive uploads.
AutoLetter automatically detects duplicates based on name and address. You can choose whether existing data should be updated or skipped.
Yes, in the import section you'll find a CSV template with all supported fields. The template includes sample data for reference.
Yes, AutoLetter checks all addresses for completeness and plausibility. Incomplete or incorrect entries are flagged and can be corrected.
Yes, you can organize imported contacts into segments afterward or assign them to an existing segment during import.
Upload your customer list and send personalized direct mail – simply and quickly.