Actually, it's not always true... I worked at Target for many years (both on the Floor and in the Receiving Room) and I know what goes on.
Not all the stock is always put out at once... sometimes there simply isn't enough space on the shelves!
Aside from that, there's always the laziness and/or ignorance of staff members when it comes to actually checking. You work in retail so I presume you would have encountered this first hand. Some staff are clueless in regard to what items they have in their areas. Others just can't be bothered looking... It's easy for staff to say they don't have it out the back, rather than go and look for it when they've got a Dept Manager breaking their balls in regard to getting the latest planagram done!
And don't get me started on phone inquiries... I've actually seen staff say to customers "Hang on - I'll go and check" and then put the phone on hold, stand there and talk to other staff, and then go back on and say "Sorry - we don't have that one!".![]()