--SPLIT-- showing in Purpose column

You’re not missing anything here, and nothing is wrong on your end. This happens because the matched receipt has multiple line items, so QuickBooks Online displays Split instead of a single label. This can also happen if the line items fall under different categories or expense types. This does not automatically mean the transaction is divided between Business and Personal. It simply means there are multiple categories attached to it.

If you prefer to leave things as is, that's perfectly fine. However, if you want a transaction to show one specific label, I suggest you keep the receipt as your record. Then, unmatch and exclude the bank transaction, and categorize each line item on the receipt individually so that each one gets its own unique label. Keeping both the receipt and the bank transaction at the same time can cause duplicates.

Please feel encouraged to use the Reply button if you need anything else.