Hello Nick,
I'm not from Adwords API Team but try to answer on your question.
Every mutateResult contains index which correlate with number of operation
in upload.
You can save locally temporary ids for each operation in the same sequence
as it was in upload. That allows you to match Adword's
Hello AdWords API team,
so the system that i am developing turned out to require huge pile of data
to be calculated and then stored in our database in form of a :
Ad Group , Ad etc.
Now my current logic is to prepare the ad groups, ads and keywords locally
first under our internal calculations.