Can a product be technically ready but not ready for customers?

I've spent a lot of time thinking about the difference between testing a product and validating it.

When you're building software, there are so many things you can measure. Does the functionality work? Are the calculations correct? Can users complete the workflow? Are the security controls working as intended?

Those are important questions, and you can spend months getting them right.

But there's another question that technical testing can't fully answer:

Will someone actually find this useful enough to change how they work?

I've started looking at product readiness as two separate challenges.

1. Technical readiness. The product works as designed, the workflows are tested, and the functionality is reliable.

2. Business readiness. Real users can understand the value, incorporate the product into their work, and achieve something meaningful with it.

The challenge is that you can make significant progress on the first without having enough evidence of the second.

I used to think getting the technology right was the biggest milestone. Now I'm realizing that understanding how people actually use it may be just as important.

For founders who've launched B2B software, what helped you move from a technically working product to one that customers genuinely relied on?