Don't know what the letters actually mean, but anytime you take something that's sold in one department and use it in your own department, you're suppose to scan it out using E-40 and then put an IDT sticker on it with your initials. Basically it's to let them know that the item has been scanned.
Although in most cases these stickers make sense, sometimes it doesn't, say, if you need to take a package of cheap rolls of paper towels (because they are almost out of the ones we are "supposed" to use) off the shelf, and then you use them up within a few hours and throw the empty plastic wrapping in the trash..........that was a waste of valuable time to place the sticker on there with your initials, since it just ended up in the trash and no one saw it.
IMO The MOST important thing is "DID YOU E-40 the product to your proper dept?" so the item BOH (on shelf) will be correct.
