It is possible to use an existing Contract within Wallee.
You can add a new processor within your Wallee Space under Payments >Configuration.
Then the necessary activation details need to be entered in order to use that processor.
It needs to be a contract already active for E-commerce or POS if it is for Terminals.
If there is no option to activate it, a Contract needs to be created, which we will use to link your existing one.
If you have any further questions, please fell free to conact us at email@example.com at any time.