+= txn_date (NEW IN 3.05) =
+
+ Some gateways return a transaction date from Authorization Only / Normal
+ Authorization transactions that must be submitted back for a follow-up
+ Post Authorization, Reverse Authorization, Void, or Credit transaction.
+
+ For the most compatibility with all gateways for follow-up transactions,
+ pass this as well as authorization and order number. Note this field is
+ a recent addition, so always access it like this:
+
+ my $txn_date = $bop_transaction_object->can('txn_date')
+ ? $bop_transaction_object->txn_date
+ : '';
+
+