When an edit is approved we can start preparing the edit for the audio mix.
To make sure we work in a non destructive manner we copy our timeline from the EDITS folder to the OUTPUT > TO PROTOOLS folder inside Premiere. We add the suffix ‘_TO_MIX’ to the sequence name so that it is clear that this is the prepped sequence.
When we prep for audio we always render an AAF with the following settings:

Click OK. Then save the file here:
Projectfolder > Project_files > Protools > To_Protools > date folder
A date folder can be written down like this: 260310 = YYMMDD.
Let your post producer know that the file is prepped and share a file path with them & the Audio Studio slack account.
Prepping for External Audio mixes can also be done in the exact same manner but share your files in a From Smash link.
Wilbur tip: Set up Export AAF as a shortcut on your keyboard so you can do it from the bin with one hotkey without even opening the sequence.