Member States shall require that obliged entities apply the customer due diligence measures not only to all new customers but also at appropriate times to existing customers on a risk-sensitive basis, or when the relevant circumstances of a customer change, or when the obliged entity has any legal duty in the course of the relevant calendar year to contact the customer for the purpose of reviewing any relevant information relating to the beneficial owner(s), or if the obliged entity has had this duty under Council Directive 2011/16/EU (
18
).