PPAP level
All PPAP levels require the same documentation. The difference lies solely in what is required to be sent to the customer. What isn't sent is to be retained by the supplier.
Typically, design records, Engineering change documents, dimensional results, material performance test reports, laboratort documentation, part submission warrant and a sample product are sent with level 2 submissions. The rest of the documentation is still required to be retained by the supplier.
Even a level 5 PPAP (which normally has no submission requirements) still carries the requirement of retention by the supplier.
As the requirement is specific to the SUPPLIER, it is incumbant on you to obtain from your supplier, and retain in your records, any documentation they provide for the PPAP.
Dave