Following lean-startup methodolody :) to validate the market...

I know there are lot of SaaS companies here who can give some validation.

How do you deal with the signup process? At our previous startups, our signups were leaking at each step. I say step as we divide a user behavior into steps - someone who has completed an action migrates to the next step. Final step would be payment and initial step would be signup. Eg: for a live-chat company - step 1 - signup/verification step 2 - creating agents 3- creating departments 4- adding code to website 5- payment when it is due.

Initially, we had someone looking after the signup process helping them at each step but it outgrew what someone could do manually.

I am thinking of a service which can automate the emails targeting users at each step. The workflow will be done visually with lot of conditional nodes - wait, send email, check behavior, json, responder etc. and the analytics would be a few lines of javascript code which a SaaS company would install so that my service can track the behavior (step he is at currently).

Eg: emails are sent to a user mentioning about the use and why he needs to move to next step at each step if he has not completed it. This will ensure that a user is moving automatically to the next step (nearer to making a payment).

Does the idea resonate or make sense to SaaS companies here?