Write once. Get a scope and a number.
What you send is read by the people who would do the work, not by a sales desk. You get back what we think it is, what it would take, and roughly what it costs, and if the honest answer is that you do not need us, that is the answer you get.
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Tell us what is broken.
You do not need a specification. What is slow, what is manual, what you cannot see. We reply within two business days, in English or French.