The commonRequest object allows to transmit general information about an operation.
Several optional attributes can be specified in the query.
Transaction source. The possible values are:
Only the EC value allows to create a transaction with 3D Secure.
The other values must only be used for MOTO, where 3D Secure is non-applicable.
Number of the merchant acceptance agreement.
If the field is populated, make sure you use the agreement that corresponds to the card scheme.
E.g. a agreement cannot be used for an AMEX transaction.
At the moment, the comment attribute is not taken into account for this operation.