I map one source CSV of up to 5,000 rows and 15 columns to one target schema you provide. You receive the import-ready CSV, a rejected-row list and a field-mapping note. This package does not include a live app upload or production changes. We agree required fields, conversions and rejection rules before processing. I preserve the original and reconcile every row. One revision within scope is included, with delivery within one week after receiving the file and target schema. Larger files or multiple sources get a custom quote. Please keep private data out of the first message.