Been through this at medium sized companies struggling to sell. This kind of customer is alluring but poisonous. Company: We sell Product X! Toxic Customer: I don't want Product X, I want Product Y. If you're willing to bolt Product Y onto one of your menus I will pay you this stack of money for it! Company: $$$! Bam! The company just went from being a product company to a custom engineering service. You will have to…
I advocated reducing the license fees but charging for customisations which would reduce this bespoke development considerably, but to no avail.