Can I run spla licenses on my customer’s servers which are located at their premises?

Yes, provided you are managing this environment on a day-to-day basis. As a matter of fact, many MSPs and ISVs are now using this option to help the customers in their transition to the cloud. End-customers could greatly benefit with this option by paying for software based on a monthly, subscription basis and only on a pay-as-you-use model compared to the traditional CAPEX, annual license procurement. Obviously, it also helps you to build further strength and trust into your customer relationships.