What is the difference between an RFP and an RFQ? When to use which?

I’m trying to wrap my head around RFP and RFQ and could really use some explanation in plain language. Basically, I’m looking for:

  • Clear definitions

  • Real-world use cases

  • The pros and cons of each approach

  • Maybe a simple decision tree or framework to help me choose?

I think what would really help is seeing how this plays out in different scenarios. Like, how would you approach a straightforward commodity purchase versus something more complex like a strategy or creative project? I’m guessing the timelines are pretty different too?

Would love to hear from anyone who’s dealt with this before. Thanks in advance!