Add contacts in bulk

POST 
/lists/list/:listId/contacts/batch

Adds up to 100 contacts in one call. Each item of contacts is the same flat object as the single POST /lists/list/{listId}/contacts endpoint, with the same field detection, custom variable auto-creation and duplicate rules (including updateIfExists).

Rows are processed independently: a failing row is reported in results (with its index and an error message) and does not block the others. A contact repeating an email or LinkedIn URL seen earlier in the same batch is counted as a duplicate.

Request

Responses

200

Batch processed — see results for the per-contact outcome

404

List not found

422

Invalid body (contacts missing, empty, or over 100 items)