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If you have a voter list from your county party, a data vendor, or a previous campaign, you can upload it directly and use it for walks, outreach, and targeting — just like the built-in voter universe.

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Supported formats

  • CSV (.csv) — any delimiter, any column order
  • Excel (.xlsx) — first sheet is imported
  • Column headers are auto-detected (Culper maps them using AI-assisted matching)

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How to upload

  1. Go to Dashboard → Lists → Upload List
  2. Drag and drop your file or click to browse
  3. Culper shows you a column mapping preview — confirm or adjust each field
  4. Click Import
The import runs in the background. You’ll get a notification when it’s ready.

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Column mapping

Culper auto-detects common column names from NGP VAN, L2, i360, and standard county exports. Common mappings: If a column can’t be mapped automatically, you’ll be asked to map it manually or skip it.

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Matching to existing voters

Culper tries to match uploaded voters to existing records by State Voter ID (VUID). If matched:
  • The uploaded attributes (phone, email, notes) are layered onto the existing voter record
  • Walk history, annotations, and survey responses are preserved
Unmatched rows are imported as new voter records scoped to your campaign only.

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Privacy & data scoping

Uploaded lists are campaign-private — only your campaign and the Culper team can see them. They are never shared with other campaigns on the platform.
Make sure you have the legal right to use any voter list you upload. Culper complies with all applicable data use agreements — you are responsible for the data you bring in.