question Re: Incrementing System Properties integer value by multiple users causing duplicate values in Community Central forum

Incrementing System Properties integer value by multiple users causing duplicate values

joachimfmen — Wed, 22 Oct 2025 11:47:39 GMT

Hello everyone!

I have a flow in flow designer that increments a value in system properties. This value should be readily available to users and every user should get a unique incremented value in a sequence. However, I am running into a problem where multiple users are accessing the same variable from system properties and are receiving duplicate values

This variable should increment every time a unique user accesses it, however when multiple users access it at the exact same time through a flow in flow designer, they receive the same value.

Does anyone have any ideas or experience regarding this issue, it would be greatly appreciated!

Thank you!

- Joa

Re: Incrementing System Properties integer value by multiple users causing duplicate values

G Ponsekar — Thu, 23 Oct 2025 07:25:09 GMT

Hi @joachimfmen ,

You'll need to create a custom flow action for this as you'll need to create a mutex. A mutex will ensure exclusive access to the resource and ensure each time it's accessed, a unique value is provided.

Can you check this community thread: https://www.servicenow.com/community/developer-forum/incrementing-system-properties-integer-value-by-multiple-users/td-p/3410285#:~:text=Kieran%20Anson,value'%20%2C%20);%20lastValue.

If I could help you with your Query then, please hit the Thumb Icon and mark as Correct !!

Thanks, GP

Re: Incrementing System Properties integer value by multiple users causing duplicate values

Ankur Bawiskar — Thu, 23 Oct 2025 07:31:10 GMT

@joachimfmen

this seems to be a duplicate thread.

Your other thread already has response.