When Planyard's Forecasting module recommends a purchase, you can preset your vendor items to be rounded by vendor case.
Let's say the purchase suggestion is 44 pcs, and your vendor case is preset to 20. You have the below options for rounding your number.
Up - rounds 44 to 60
Down - rounds 44 to 40
Nearest - rounds 44 to 40 (with this setting, 51 would round to 60)
None - remain at 44
In the "Update Products Bulk" upload sheet, you can select the above setting by filling in the column "Enforce Case" with your applicable selection.