File requirements service allows API users to determine file types necessary for any product/option combinations.

Bellow is a list of possible file reason-codes:

Abbreviations | Possible file reasons/types

fr | Front
bk | Back
fm | Front mask
bm | Back mask
ffm | Front foil mask
bfm | Back foil mask
cm | Cut mask
in | In
out | Out
l1 | Lenticular file 1
l2 | Lenticular file 2
l3 | Lenticular file 3
cvr | Cover
multipagepdf | Multi-Page PDF document