An ArcGIS Enterprise upgrade to version 11.2 performed with ArcGIS Enterprise Cloud Builder for Microsoft Azure fails when a three-character Microsoft Azure Resource Manager (ARM) prefix is configured.

Workaround

• While attempting an upgrade through Cloud Builder at the Summary page (very last screen), click on Save automation artifacts, provide a file name, select PowershellScripts and cross platform CLI scripts checkboxes and click Generate. It generates an archive (zip file) in the path provided. 
• Locate the above file and extract in a folder. 
• Find the sub string - "SiteUpgradeVM" and replace it with "UpgradeVM" in the below files of the above folder.

 i. Upgrade-ArcGISSite.ps1 

ii. add-upgrade-vm.parameters.json 

iii. upgrade-portal.parameters.json 

iv. -upgrade-server.parameters.json 

v. upgrade-datastore-install.parameters.json 

• Add the following line in Upgrade-AzureResourceGroup.ps1 after line 175 Invoke-ExecuteTemplate -TemplateName 'postupgrade-portal' -VMNames $PortalMachineNames.
• Run the ./Upgrade-ArcGISSite.ps1.

Steps to Reproduce