There are two different upgrade paths to Business Central, depending on the version you are upgrading from. For Microsoft Dynamics NAV 5.0 and Microsoft Dynamics NAV 4.0, you must go through Microsoft Dynamics NAV 2013. For Microsoft Dynamics NAV 2009 SP1 and Microsoft Dynamics NAV 2009 R2, you can choose to go through Microsoft Dynamics NAV 2013 or Microsoft Dynamics NAV 2015
Through Microsoft Dynamics NAV 2013
Upgrade to Microsoft Dynamics NAV 2013.
For more information, see Upgrading to Microsoft Dynamics NAV 2013 in Previous Versions Documentation.
Upgrade to Microsoft Dynamics NAV 2018.
For more information, see Upgrading to Microsoft Dynamics NAV 2018.
Upgrade to Business Central.
Upgrade the Application Code
Upgrade the Data: Single-Tenant Deployment or Upgrade the Data: Multitenant Deployment.