Return Imports — Valid Row Export

Choose this endpoint when you need to validate a return imports CSV against a declared table contract and extract only conforming rows, particularly when you need to enforce allowed category values for reason codes, numeric range bounds, and cell length constraints. It is purpose-built for the returns domain schema (return_id, received_on, reason_code, returned_units, restocking_fee) and handles quoted cells. Prefer this over generic CSV validators when you need domain-specific returns data contract enforcement with a clean valid-row output.

• CSV exceeds 100,000 character limit — rejected with size error
• Rows exceed 1000 row maximum — only first 1000 processed or error returned
• Invalid delimiter character not in allowed enum — validation error
• Cell content exceeds max_cell_length — those cells or rows flagged invalid
• No rows pass validation — empty valid row set returned
• Malformed CSV (unmatched quotes, structural errors) — parse failure