# Can't change parameters of the snapshot
**URL:** https://qa.fmod.com/t/cant-change-parameters-of-the-snapshot/16634
**Category:** Unreal Engine
**Tags:** ue4
**Created:** [January 13, 2021, 7:09am UTC](https://qa.fmod.com/t/cant-change-parameters-of-the-snapshot/16634 "2021-01-13T07:09:18Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@10n3r](https://qa.fmod.com/u/10n3r)
#### Post date: [January 13, 2021, 7:09am UTC](https://qa.fmod.com/t/cant-change-parameters-of-the-snapshot/16634/1 "2021-01-13T07:09:18Z")
Hi, i have a snapshot that i made in mixer and i made a parameter to automate volume changing on 2 buses.
Now the snapshot event is activating when i need it to, but after that “set parameter” node doesn’t change anything and i get only overriding behaviour from that snapshot.
I am a noob in programming even if it’s through blueprints, i have changed the parameters on other fmod events not using snapshots, but this behaviour that i have in mixer and snapshot right now is what i like to have in final result.
Do i miss something, or i just can’t use parameters when i use snapshots?
EDIT: After changing snapshot parameter from local to global, and changing set parameter to set global parameter by name, i achieved desired effect. Although i am not sure i did the right way.
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### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [January 18, 2021, 10:07pm UTC](https://qa.fmod.com/t/cant-change-parameters-of-the-snapshot/16634/2 "2021-01-18T22:07:50Z")
You are right in what you found out - parameters in the mixer can only be global parameters. You are able to add local parameters to a snapshot but you must set the parameter’s value on the snapshot itself.