After receiving a package, if you are getting a "Multiple Name / Match Error" while scanning the package label, it means the app has picked the recipient's details from the label and is partially matching it to an existing recipient with a similar name. You can resolve this error by following these steps:
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Click on the "Scan Issues Tab" from the "Pending" section of the app.
Tap on the item with the error.
Select the correct recipient from the list of suggested possible matches.