Can someone with prior experience tell me what documents are typically required for Precertification?

I understand that I have to fill a Precertification spreadsheet with explanation on strategies along with 'any supporting documentation'.

Now I am not clear what supporting documentation means here. For instance, in EAp2 Minimum Energy Performance credit, we upload MEPC spreadsheet with inputs from Energy model and similar calculations and documentation for other credits. Are we supposed to fill that out and include with this submittal or wait until we get a response back from USGBC?

I have responded to LEED Review comments before so I am aware of the documentation process, but I have never started a LEED project from scratch.