After upgrading to Snow License Manager (SLM) 25.1.0, the Snow Inventory Server Service may fail to start. The Snow Inventory Service log shows that no valid API source or endpoint is available.

In the Snow Inventory Service log, you may see entries similar to:

INFO  InventoryServiceRuntime; Services to start: ComputerDeleteService, UserDeleteService, DeviceDeleteService

INFO  ConfigurationService; No API-Sources found for InventoryDBID: 1

INFO  ConfigurationService; No API-Sources found!

INFO  WindowsServiceHost; [Topshelf] Started

ERROR DeviceDeleteService; No valid API-endpoint found, aborting!

ERROR UserDeleteService; No valid API-endpoint found, aborting!

ERROR ComputerDeleteService; No valid API-endpoint found, aborting!

This issue occurs when the API key and server address tables are empty, which prevents the service from finding a valid API endpoint.

To confirm, check whether these tables contain data:

select * from SnowInventory.inv.APIKey

select * from SnowLicenseManager.inv.tblAPIKey

select * from SnowLicenseManager.dbo.tblAPIKey

select * from SnowInventory.inv.ServerAddress

select * from SnowLicenseManager.inv.tblServerAddress

select * from SnowLicenseManager.dbo.tblServerAddress