Yes in the UK Tesco suffers from this (not as badly as a 3rd of items), because they pick out of their local supermarkets for the most part.
Ocado on the other hand uses huge centralised warehouses which have much more stock. They can also estimate substitutions ahead of time (much better stock management) based on delivery time and inform you to pick something else rather than some random choice when it's too late.
The difference in substitution levels is night and day. I feel instacarts model is really wrong on the logistics side.
Ocado on the other hand uses huge centralised warehouses which have much more stock. They can also estimate substitutions ahead of time (much better stock management) based on delivery time and inform you to pick something else rather than some random choice when it's too late.
The difference in substitution levels is night and day. I feel instacarts model is really wrong on the logistics side.