When upgrading from Dynamics 365 Online version 8.2 to version 9.0, it’s good practice to check for any deprecated components. One area with the biggest changes are the client APIs. Microsoft reorganized the Xrm Client API object model to support the new Unified Interface.
Of course, code using those deprecated client APIs will need to be replaced eventually.
2016 from XrmToolBox, Team Foundation Server, Visual Studio, or even NotePad++.
Lastly, you can create and organize plans to test form events and HTML web resources in Dynamics 365.
Replacing deprecated client APIs is just one component for the upgrade process to Dynamics 365 v9. If you’re looking to upgrade to Dynamics 365 v9, contact PowerObjects!
Happy Dynamics 365’ing!