So true. I can totally relate because I had the same problem.

Whenever I write code, it either runs, or does not. It’s my fault, or I could say: it is my responsibility.

This is different with marketing. It depends not only on me but on other people’s behavior. And most of the time, I couldn’t see any relationship between effort and results.

Therefore, I have on my product roadmap a gamified loop with feedback, so that reluctant marketers have fun and keep being engaged to use the platform and stick to their habit.

You could seek permission from users to let you use their data to build a model to provide guidance.

Build a model? In the sense of machine learning or in another sense? Cool idea, what could that look like?

Yes, an ML model. If you built the machinery to connect marketing actions to business outcomes, as the OP complains about, you could recommend what actions to take. It's a straightforward machine learning task.

Cool thing. Guess I shouldn't reinvent the wheel here. Is there an open source example that I could learn from?

I don't think you will get far without knowing some ML but you could look at https://github.com/google/lightweight_mmm

Ah, there is food for thought and learning, here. Thanks for sharing, I will try to understand what's going on there.

There is Mar5000, a list of 5000 marketing related tools. Now this number if approaching to 8000, so I'd agree, lack of tools is not an issue.

Should I add my tool to the site? ;-)

By the way, I couldn't find that site. Mind sharing a link?