SSRS continues to be the platform for producing advanced operational and business document reports in Dynamics 365 for Finance and Operations, Enterprise edition. The process for developing a report in the current version of Dynamics 365 for Finance and Operations, Enterprise edition is easier than it is in AX 2012, because you can create and validate a reporting solution entirely in Visual Studio. In Finance and Operations, administration of SSRS is also simplified by hosting the services on Microsoft Azure compute service. SSRS framework also provides document printing and distribution services for producing precision documents which are intended for email, printing, archive, and bulk distribution. If you have requirement to change the existing reports, extension of SSRS report is not possible. Best practice is to leave the out-of-the-box reports as is, and create a copy of it to modify as per your requirement as a new custom report. Menu item extensions can be used to redirect the business logic to run custom report instead of standard report.