An external payment service provider Account (like Paypal) has been linked to Wallee.
It can be changed and relinked, but not be removed.
We deliberately do not allow changing. If you could, then the operations on existing transactions would no longer work. I.e. if you first make transactions, then change the account, then refunds would no longer work on the existing transactions. Therefore, the Processor must be deleted in this situation if it is really necessary. Refunds should then still work on the old transactions. The data will be effectively removed later.