Configuring Purview policy to email user's Leader for approval, using external HR Database

Hello, 

Wondering if anybody could confirm within Microsoft Purview if it is possible to: 

Have a DLP Policy configured with a Policy Tip Override and have it configured so if the email for example is blocked it sends a Notification to the users 'Leader' to either Accept or Deny it.  If Accepted by the user's Leader, the content is released.  In the same configuration have Purview user a Data Connector to say a SAP database that the HR Department uses or any type of external database to automatically determine the users leader???  If so, any Microsoft articles and or videos????  Also want this compatibility to also be used for any type of Policy for say a SIT, Sensitivity Label, Trainable Classifier etc. etc. 

Thank you kindly, 

J