Responding to a data subject access request includes receiving the request and validating an identity of the requestor. In response to validating the identity of the requestor, a computer processor determines whether the data subject access request is subject to fulfillment constraints. If so, then the computer processor notifies the requestor that the data subject access request is subject to one or more limitations and the computer processor takes action based on those limitations. Fulfillment constraint data is updated and maintained in a database or server.