I have PersonAccounts enabled in the Sales cloud Org. We are using Subscriber Key as PersonContactId in Marketing cloud. We have a cloud page from which we need to update PersonAccount in Salescloud and are able to get the Subscriber Key in a ampscript variable, but if we use the PersonContactId to update the Sales cloud record from Cloud Page, it gives an error.
How can we update a Account/PersonAccount from CloudPage where we have the PersonContactId as the Subscriber Key?