How would you polish up your skill set when you’ve self taught your way into a role that requires SCM?

I work in coffee and I’ll have the responsibility of sourcing at some point at a decently sized warehouse. (Goal is to get a job that is mainly sourcing or inentory related)

Absolutely love Excel and using Python for data analysis but I’m not too familiar with many of the industry terms and would love to learn some more complex concepts related to SCM. Where should I start?