var transactionParameters = new TransactionParameters.Builder() .Charge(10.00m, Currency.USD) .Subject("Bouquet of Flowers") .CustomIdentifier("yourReferenceForTheTransaction") .TipAdjustable(true) .Build(); // Start the transaction as usual via PosClient.GetTransactionModule().StartTransaction()
var transactionParameters = new TransactionParameters.Builder() .AdjustTip(transationIdentifier, 2.00m, Currency.USD) .Build(); // Pass the parameters to PosClient.GetTransactionModule().AmendTransaction()