All data under GDPR which also falls under another law can be stored, but NOT used for any other purpose than of the overlaying laws. So just because you have t

All data under GDPR which also falls under another law can be stored, but NOT used for any other purpose than of the overlaying laws. So just because you have the information doesn’t mean you can use it. Having the same information, even “soft deleted” would violate GDPR since you are not allowed to store it like that. Having information grouped like that still implies information which will be under GDPR. Like if you store this information in the “customer” database that will imply that the customer was a customer at some time, and then illegal by GDPR. If you move this information to another database which stores “transactions” which you require to do by law that’s ok. But you are not allowed to query that information to answer the question, “who have been my customers”.