Before entering into a business relationship or performing an occasional transaction, an obliged entity shall assure itself that it understands its purpose and intended nature. To that end, the obliged entity shall obtain, where necessary, information on:
(a) the purpose and economic rationale of the occasional transaction or business relationship;
(b) the estimated amount of the envisaged activities;
(e) the business activity or the occupation of the customer.
For the purposes of the first paragraph, point (a), of this Article, obliged entities covered by Article 74 shall collect information in order to determine whether the intended use of high value goods referred to in that Article is for commercial or non-commercial purposes.