Hi Henrique,
If you navigate to the app implementation document for Bank Statement Monitor, you'd find the following information:
To be able to implement the app, you must perform the following configuration tasks:
•In the app Manage Bank Accounts, specify the import method, import channel, and bank statement check time.
To do so, open a bank account, specify the above fields on the General Data tab, under the Bank Statement Data section.
•Configure the Customizing activities under SAP Customizing Implementation Guide ->Financial Supply Chain Management -> Bank Communication Management -> Bank Statement Monitor -> Settings for Bank Statement Monitor.
Regarding the license requirements, I'd recommend that you talk to AE or the solution manager of Cash Management.
Regards,
Amy