That is a different perspective than I had coming into this - that makes a lot of real-world sense in terms of representing what really is going down - thank you! I will definitely keep this in mind!I work in med device but if customer surveys arent providing the info you need I think there are other metrics you can capture.
1) On-time payment behavior. Some customers are always late. Im not talking about that. I am thinking trends on that. Work with your billing group to track that. Happy customers pay without needing 20 reminders.
2) They re up their contract with you without much hassle. They recommit for another 5 years with only minor haggling on price.
3) They are not sending an email about the cost its taking them to rework your products
4) Complaints generally
5) Complaints that require escalation internally - worse
6) Meeting behavior - Informal technical calls without contracts present. They are willing to talk to you about items other than cost.
7) They are willing to let you visit and access production to see how your product is being used.
8) Their audits of you. What have they said? Major NC? Is the tone warm or threatening?
9) Blame posturing. How do their engineers treat you when a problem pops up?
10) Sales feedback. Sales enjoys working with this account and is received in a friendly manner. Discussions are not tense.
11) When a problem comes up they call you first because they want you not to be blindsided. They dont draft a 20 page SCAR and email it to your entire QA group and sales group.
If you want you can weight each of these but these will be subjective but if you trend it that removes some subjectivity. Not all customers complain via literal complaints.