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Apply Financial Line Backfill

POST 
/api/faire/instances/:integrationInstance/financial-line-overrides/backfill

Re-key past Faire-imported FinancialLine rows to the override types that are already persisted on the integration instance. No request body — the overrides are read off integration_settings.financial_line_type_overrides, which is set via the Update Faire Instance endpoint.

Branches covered: commission, payout_fee, payout_protection_fee, damaged_and_missing_items (all cost), covered_shipping (revenue).

Behavior per row:

  • Updates financial_line_type_id to the override's ID.
  • Copies the override's nominal_code_id onto the row (so accounting export reflects the new mapping).
  • Does not change line amount, currency, or any other monetary field.
  • Branches with no override configured (or set to null) are skipped entirely — those past rows keep their existing default Faire types.

Typical flow:

  1. User changes overrides in the Faire settings UI.
  2. UI calls PUT /api/faire/instances/{id} with the new financial_line_type_overrides (this also passes the classification guard).
  3. UI calls POST .../financial-line-overrides/preview-backfill to show the count to the user.
  4. If the user confirms, UI calls this endpoint to apply the change to historical rows.

Response: Returns a { commission, payout_fee, payout_protection_fee, damaged_and_missing_items, covered_shipping, total } object where each number is the count of rows actually updated (i.e., rows whose existing type differed from the override). total is the sum across branches.

Request​

Responses​

Successful response