Ensure you meet the following requirements prior to installing Mobile Designer on-premises:

•Windows Server: 2019, 2022, or 2025.

•An ArcGIS Online or Portal for ArcGIS: You must have either an ArcGIS or Portal for ArcGIS identity to sign in to Mobile Designer or VertiGIS Studio Go.

For an on-premises installation of Mobile Designer, the free, public ArcGIS Online accounts are not supported, because they do not permit you to create an ArcGIS Online app for Mobile that is essential for it to function. You must have an ArcGIS Online license that is for at least a Developer or Organization account.

•Create a Mobile app in your Esri Portal: You must add an Application for Mobile Designer and VertiGIS Studio Go to your organization's Esri portal, as you need it to obtain an App ID and a Redirect URL from that app to use during the installation process. You can use a single portal app for Mobile Designer and VertiGIS Studio Go.
This application must be registered. In some organizations, this can only be done by Administrators.

Adding an app is particularly important if you plan to use Portal for ArcGIS and VertiGIS Studio Go, as you will get an error message trying to open VertiGIS Studio Go unless you have configured the App correctly.

•IIS Website: If you are installing VertiGIS Studio Mobile Designer on premises, and you want to use a website in IIS that is not the Default Web Site, you should have (or create) that web site before you run the Post Installer. Although IIS is installed during the post-installation process, if you plan to use a custom folder, you must install IIS first and then follow the steps in Use a Custom IIS Website.