On a job application, what is some language i can use for "clerical activities related to requisitioning, purchasing and/or bidding activities?"?

what’s wrong with the way you put it in the question?

they need more specific lingo.

Change “clerical activities” to “administrative duties related to… or “administrative tasks related…”

YOUR way puts “activities” twice. Try to avoid that in your writing.

You can also break it down more. For example:

*Preparing requisitions, purchase orders and bids.
*Tracking company purchases to ensure delivery and proper invoicing.
*Distributing paperwork related to company purchases to appropriate departments and maintaining purchasing files.

Administrative assistance in the procurment of XYZ, including requisition, bidding and purchasing activities.