The single biggest reason sourcing fails is not the factory. It is the brief. Here is how to give suppliers exactly what they need to quote and sample accurately.
Most sourcing projects do not fail because of the factory. They fail because the brief was never clear enough in the first place.
When you send a supplier a vague description, a screenshot from Pinterest, or a voice note explaining what you are trying to make, you are asking them to guess. And factories are very good at giving you what they think you want rather than what you actually need.
What a factory actually needs
Before a manufacturer can quote accurately, sample correctly, or commit to a timeline, they need to understand your product in enough detail to produce it without asking a hundred questions. That means:
- Dimensions and tolerances. Exact measurements, acceptable variation ranges, and any critical dimensions that cannot move.
- Materials and finishes. Not just "natural linen" but the weight, thread count, weave type, and finish treatment. If you have a reference sample or swatch, send it.
- Construction details. How is it assembled? What hardware is used? Are there internal structures, inserts, or linings?
- Packaging requirements. How is it packaged for retail? What labelling is required? Does it need to meet any compliance standards for your target market?
- Quantity and timeline. A factory will price differently for 200 units versus 2,000. Tell them your initial order quantity and your expected growth trajectory.
The commercial check you should do first
Before briefing factories, work backwards from your target retail price. Know your desired landed cost, and understand whether offshore manufacturing can realistically hit it for your product category and volume. This saves everyone time, including yours.
At Source Haus we do a commercial check before taking any client deposit. It is one of the most valuable parts of our process because it stops founders spending months on sourcing only to discover the numbers never worked.
You do not need a perfect tech pack
A full technical specification document helps, especially for apparel and complex hard goods. But it is not always necessary. What matters is that your brief contains enough specific, unambiguous information for a factory to quote and sample without needing to fill in gaps themselves.
If your brief is incomplete, we help clients clarify what is missing before we start. A structured product brief that we build with you can serve the same purpose as a formal tech pack for many product categories.
The bottom line
The quality of your brief determines the quality of your samples, the accuracy of your quotes, and the efficiency of your entire sourcing process. Invest time in getting it right upfront and everything downstream gets easier.
If you are not sure whether your brief is ready to take to market, a sourcing call with us is a good place to start.
Frequently asked questions
What does a factory need to give an accurate quote?
Exact dimensions and tolerances, material and finish specifications, construction details, packaging requirements and your expected order quantity. The more specific the brief, the more accurate the quote.
Do I need a formal tech pack to source from overseas?
Not always. A well-structured product brief covering specifications, materials, dimensions and packaging can serve the same purpose for many product categories.
Why do factories give inaccurate quotes?
Usually because the brief was vague. Factories fill in gaps when information is missing, so their quote is based on assumptions that may not match your actual product.
What is a commercial check and why does it matter?
A commercial check confirms whether your target retail price and desired margins are realistic for your product category and volume before you spend time and money briefing factories.
How do I know if my brief is specific enough?
If a factory can quote and sample without asking many clarifying questions, your brief is working. If they need to fill in the gaps themselves, it is not specific enough.
Kristy Withers
Founder of Source Haus. 20+ years in product sourcing and manufacturing across China, India and Southeast Asia.
