Can the Pre-Auth completion be higher than the original Pre-Auth value?
No, you cannot complete a Pre-Auth for a higher value than the original Pre-Auth taken. If you need to process a completion payment with a higher value, you will need to void the original Pre-Auth and process a further Pre-Auth if necessary or process a Purchase Sale.
Note: If you have an Ingenico device you can update the Pre-Auth amount to a higher amount.
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