Hi Andre,

There is a checkmark for systems flows in the process flow screen which is default off: multiple running instances

This should prevent indicium from starting another instance when the previous scheduled one is still running

​@dennis.spiering Yes, I know. But when I want to run multiple instances, is it also possible to limit the number of running instances? For example, I want to run multiple instances, but not more than 3 at the same time.

I don’t think this is possible by any settings. What you could do is create a counter table. In a decision node add +1 for that running instance and subtract 1 when finished in the last step. Then in the first step check if the counter is < 4 else stop that instance of the flow. This would prevent more then 3 running simultaneously. 

​@Erwin Ekkel Thanks. I hoped it could be easier (no-code), because IAM knows the number of running instances.