OSA challenges relate in particular to fast-moving items in the market, which account for only a small share of the total product range. Here in particular, shelf gaps have a significant impact on the retail result. The causes of skew are many and varied, and cannot always be avoided through well-coordinated activities on the floor (inventory, shelf maintenance) or upstream processes (F&R, phantom stock, sales fluctuations, etc.). The focus of this Open Innovation Call is on improving intraday shelf availability. Processes that are already covered by solutions in operation (F&R, order suggestions) are outside our consideration.