Which RFQs should a manufacturer decline?

When RFQ volume exceeds the shop's capacity to quote well, something is going to give, and the only real choice is whether it gives deliberately. The default is to quote everything and let quality degrade uniformly — rushed numbers, padded contingency on parts nobody had time to think about, and quotes returned after the buyer's decision date. That distributes the damage across the winnable work and the unwinnable work alike, which is the worst available allocation.

Declining is cheaper than it feels, and the fear behind it is misplaced in a specific way. The relationship risk of a decline is real but small when the decline is fast, reasoned and points somewhere useful. The relationship risk of a slow quote or a padded one is larger and is routinely mistaken for a pricing problem: the buyer concludes the shop is expensive or disorganised, and stops sending RFQs without ever saying so. A shop that has never declined an RFQ has usually declined many, silently, by quoting them badly.

What makes declining safe is that it becomes a rule applied at receipt rather than a judgement made at the deadline. Three tests cover most cases. Is it inside the capability envelope — size, tolerance, material, process, certification? Is it above the economic floor, given that a quote itself has a cost? Is the buyer's decision date inside a window the shop can meet? Any of those failing is a decline, and all three are answerable in minutes by whoever opens the enquiry, which is the point: the expensive part of a bad RFQ is the hours it spends in the estimator's queue before anyone decides.

The certification test deserves separate mention because it is binary in a way the others are not. Where a part requires a quality system, a material certification or an industry approval the shop does not hold, no amount of capability makes the RFQ winnable, and quoting it is pure loss. Shops sometimes quote these anyway in the hope of a waiver. Buyers in regulated supply chains do not grant waivers, because the requirement is not theirs to waive.

How the decline is communicated is what converts it from a lost enquiry into a retained relationship. A named reason, a statement of what you do handle, and a referral where you can make one. Buyers assembling a supply base value a supplier who tells them quickly and accurately what they are not, because it makes everything else the supplier says more credible. The shops that get called first for the work they can do are frequently the ones that were clear about the work they could not.

There is a second-order benefit that shows up in the numbers within a quarter. Declining at receipt raises the win rate on the quotes that are returned, because the denominator no longer contains work that was never winnable. That matters beyond morale: win rate by source and by part class is the input to the directory renewal, the configurator decision and the capacity case, and a denominator polluted with unwinnable RFQs distorts all three.