It depends on the availability of the product. If the product is available in the same store, its highly likely that you can pick it up on the same day.
Usually durimg the ordering process it will indicate tje availability amd when it can be picked up.
Depends on the product and if they have it in stock. It should give you an option to pick up at the store.
One hour even if it is in stock is unlikely
Check with Walmart.
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