Which M-FILES account runs scripts on the server

If your code is running in a VAF then it'll be the user that MFAppPlatform.exe runs as which will need writes.  This should be the same Windows account that the M-Files Server process runs under.

Thank you for this information.
Currently it is a local system account that manages this service.

What is the risk of changing the account to an administrator account ? 

Does account indicated need to have an M-FILES connection account ? I imagine so.

Thanks for your help..

Thomas

I don't have any recent experience of this.  I am aware of this: Running M-Files Server Services with a Managed Service Account Instead of the LocalSystem Account (site.com)

Can the current local system account not be given access?

We'll probably give access to the local admin account. Thanks for all this information