Hi there, I am trying to create a flow that will create multiple oustom object records when an opportunity is closed. 

There is a field on the opportunity that calculates how many records need to be created. Where do I start? I think i have the Assignements estabished and the Sobject collection variable created, I cant fgure out how to initiate the flow.

We should really hire someone to do this, but there is no budget.