The main idea behind using story points is to take away focus on the absolute time/cost of a task and look at the relative sizing vs the other tasks you have in front of you.
This has worked well in all the other companies I have worked in. Here the typical setup is that you have a software team, working on a product, and a product owner which can use the story point estimations to prioritize one feature over another for the next sprint and/or release.
However, in my current position it's a bit different. We develop software for a hardware platform we sell to customers. However, all sales requires us to tweak our software to match the customers' needs, and this tweaking is often a significant cost for the company when selling a product.
Therefore sales/management always needs an estimate of how time-consuming various customer-related tasks are, so they can factor this number into their offers when they bid on jobs.
We spend roughly 50% of our time integrating our base software into customer specific solutions, and 50% of the time on improving our base system.
Question: In this case. Does it even make sense to try to abstract away time/money from the development using story points, since numbers are always so close anyway?
When sales comes and asks: "[The customer is willing to pay $1 million extra for feature X,] how expensive is feature X to develop?" It's impossible to not look at the number $1 million then the amount of story points for the task, and make a direct transformation.
You could argue that you should not tell the developers about the actual number, but I don't like this for two reasons:
- I don't know what you actually gain from it here. You still need a direct story point->time->cost transformation
- We are only around 20 people in total, 8 in software. A sale is a huge thing, and I think taking away information of how everything is going would stress people more than giving them peace of mind to "just work on development".
 Either to make it integrate into their current system(s) or give them an edge in their market.