We sell items on multiple different sales channels and have come across a problem. We may sell an item as an "Each" (1 unit) on one of our ecommerce platforms, but a retail customer will purchase that same item by the case (24 units). I have started to look into units of measure, but am unsure if that will fix our problem. How can I receive sales orders/purchase orders (via API or EDI) for the same item in different unit types and have them all work out properly?

i'd be tempted to use a kit item with 24 members instead. really not a fan of UOM schedules

We have been using kits to this point, but we run into a lot of issues with translating what the customers want vs. what we are fulfilling. Our retail customers require us to submit a document showing our products with their inner and outer case quantities and then may order by eaches, inners, or outers. Our difficulty is translating that and fulfilling the correct quantity.

Sounds like UOM schedules is right answer then

So, I think I understand how to set those up...but how do I reconcile a sales order when it might come in as 48 eaches or it could come in as 2 24 packs?

Your UOM would be passed with the order. - your quantity is combination of the UOM+Quantity

We use Celigo for all of our integrations...so when I have an item sold in a marketplace as an each, I would map the UOM as each...when I have an EDI transaction come from a retailer, I would map it as "24 pack" or whatever the UOM is called?