RAG systems Vs Fine-Tuning, what do I do

I am starting my own SaaS - Automated DIY Chatbot building

I want my users to be able to:

  • instead of using RAG for the AI to know about their business, to use Fine-tuning ( my assumption is in the long run it’ll cost less )

But I have no clue what will happen if for example they want to change a small detail, how it’ll be done, and if they wannt fine tune it, how long it may take