Hello @Barendregt, W. (Ewout) , Thanks for using Microsoft Q&A Platform.
May I know the region you were working on?
To learn about Azure Monitor please go through this documentation. Also, here is the documentation to know about analyzing logs and to setting up alerts: https://learn.microsoft.com/en-us/azure/ai-services/openai/how-to/monitoring
I hope this helps.
-Please kindly accept the answer and vote 'yes' if you feel helpful to support the community, thanks.