Start with the intended product
Describe the intended use, a style reference or image, and the details to keep or change. A clear brief is more useful than a request for an unspecified price.
Separate confirmed and open points
List material, colour, sizes or dimensions, quantities, labels, packaging and destination. Mark open points as requests for advice rather than inventing specifications.
Keep one versioned brief
Record the date, style reference and change notes. Reuse that reference in follow-up communication and confirm the quotation, sample and final requirements separately.