You're certainly well on track with your 'transfer delivery', but it's like this: if a warehouse (possibly attached to a manufaturing facility) is getting overfull, it might be decided to transfer some of the stock to an outside warehouse.

That's the "Auslagerung" - warehousing as it were "away from the production facility", and the "-auslieferung" is just the delivery or dispatch, depending on where you are actually standing - at the sending end, or the receiving end.