what does the shipments papers u get form a merchant do aka shipment of glass-50

When you buy them, take them to your settlement, drop them on the floor, go into edit mode and scrap them, you'll get the value on the paper.
I.e 50 glass.

k thank u so much

Or just transfer then directly to a work bench.

Just store all junk into your workbench, no need to scrap it.