What does your vendor make money on?
Forget the reference list for a moment. Forget the certificates, the case studies, the partner logo. The most revealing information about your future project sits in the pricing model.
Incentives determine behavior. Not intentions, not values slides, incentives. A vendor billing by day rate earns money on every day your project runs longer. That doesn’t make him a bad person. It makes him someone whose economic interest and your project goal point in opposite directions. Every complexity discovered is good news for him. Every additional workshop, every extension of the discovery phase, every “we need to dig deeper into that” pays into his quarter. Why should he finish fast? The honest answer: there is no reason. Finishing fast is a losing trade in this model.
Fixed price flips the mechanics. Whoever offers an audit for a fixed amount in five days loses money on every day he dawdles, and earns on efficiency. Suddenly it pays to build tools that speed up the analysis. Suddenly experience pays, because the 47th look into a broken Salesforce org goes faster than the third. The incentive points at outcome instead of duration.
And here’s the second piece of information shipped inside the pricing model: only someone who can calculate his craft can afford fixed prices. Whoever doesn’t know how long something takes, because he hasn’t done it often enough, has to bill by effort, otherwise his own uncertainty ruins him. The day rate is also an insurance policy against the vendor’s own inexperience, one that you as the customer pay for. A fixed price with a fixed deadline, by contrast, is the vendor’s bet on himself. It only works out if he has seen the problem dozens of times.
Of course fixed price has limits. Nobody can seriously flat-price a six-month program with unclear scope, and whoever does it anyway has simply hidden the buffer. But well-bounded building blocks, an audit, a migration, an integration with defined scope: all priceable, if you know what you’re doing.
So the question for the next proposal conversation isn’t what the day costs. It’s: what does the outcome cost, and by when is it delivered? The reaction to that question tells you more than three reference calls.