I'm trying to find a way to communicate my role or position title in this situation.
A friend of mine wanted to start a small business using their knitting skills, but they didn't know how to make a budget, track orders, market themselves, etc. They asked for my help and I set up those pages and spreadsheets for them and gave them a short training on how everything works. I have no further involvement except to maintain and change the format of the spreadsheets as the small business continues to take off and I am not the owner, I helped for the experience.
Now I'm trying to write about it and I can't find a word or phrase that acts like a 'job title' that can fully or even partially encompass what my role was in getting the business off the ground. When I try to look for words, analyst or assistant come up, but the former feels too involved and the latter feels too vague because I helped out with a range of things.