Hi bdesrosiers96,
Welcome to Community! QuickBooks Online provides the features you need when situations like this arise. I'll be happy to provide more insight here!
Based on the information you've provided, I suggest taking a look at the audit log to see if an item has been edited, void or deleted. To access the audit log, go to > Settings ⚙ > Audit log. If it's been voided or deleted, you'll need to re-create the transaction.
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