thank you sukrat, i need to upgrade my 7.3 on premises environment to 10x, i have overlayered code, and as i followed the document , no code upgrade was mentioned, only the below
12. If you had customizations:
a. In LCS, go to the Shared Assets Library.
b. Under Select asset type choose Model and download: Dynamics 365 for Finance and Operations on-premises, Application Version 8.1 Demo Data.
c. Use this file to create a new database (typically AXDB) using the restore backup option from SQL server. For more information, see Restore a Database Backup Using SSMS.
d. The database will need to be configured. Follow the steps under Configure the Finance + Operations database.
e. In LCS, set up a new environment and deploy it with version 8.1 (Redeploy). For more information, see Set up and deploy on-premises environments (Platform update 12 and later). When you deploy, the database that you should specify should be the one created in step 12c (typically AXDB).
f. Apply your own customizations as well as ISV/VAR modules, to your newly created 8.1 environment. Otherwise when the environment initially syncs with the database it will delete any customization or extensions related data.
g. Shut-down on-premises AOS, BI, and MR servers, or stop the services from the Service Fabric portal.
h. Rename or delete the demo database (typically AXDB) used in the deploy and then rename your new database (typically AXDBupgraded) to the name the demo database had (typically AXDB).
i. Start on-premises AOS, BI, and MR servers, or start the services from the Service Fabric portal.
