It could be a variety of things and we lack information, so I'll give a, hopefully useful, generic answer.

>We did get some validation and we are generating low 3 digit revenue. But, that’s not enough.

- Does your product save money, make money, or make life "easier"?

- Did your users find you or did you find them?

- How many people have you talked with and what have you learned?

- How did your users find you?

- How did you find your users?

- What do they have in common?

- Are they in the same industry?

- Are they in the same function?

- Have you talked with them?

- What is it that they're trying to accomplish with your product? (I'm not asking you what your product does, I'm asking what they are trying to do)

- How do they describe your product? Are there words that come up again. Do they describe it differently than you do?

- What is your conversion graph (or "funnel" with the different drop-offs) like?

- What's your product's sale complexity? (high touch? low touch? do they self-serve? Do they need a demo? Do they struggle?)

- Is the user the person who pays for the product or is it someone else?

- What's your features usage like? (are they using all the features and if not, why not and what are they using to solve the problem you built the features to solve?)

- What did the people who said "NO" tell you? What are the reasons they will not use your product?

You're generating low 3s, so you have (a) customer(s).

Talk to them and find out what you can do more for them. Literally talk to them on the phone, and ask what can you do to help them further, what pain points do they still have? Maybe don't even talk about your product at the start.

Ask why you're geting NO responses.