Yeah, this is a classic 'nice to have' solution - it's a pain point in the process and so you hear feedback and requests for solutions.

But the real question to determine if it's a viable product/business is does it drive enough value that people will actually buy it, use it, and remain paying customers?

I'd say in your example above, it likely won't massively decrease costs (the salespeople are still having to interact with a CRM) or drive increased incremental revenue in any real way.