Is it possible to limit the number of multiple running instances for a system flow?

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. 

Feel free to create an idea for this in the ideas section.

What does this system flow functionally do? If it’s still running is the frequency correct? If it is started multiple times from API or user interactions perhaps it’s better to create a collector flow that runs every 5 minutes and groups these requests. 

The system flow processes new rows entered in a table. I want to protect the system being overloaded.