Hi @Dobrowolska Beata ,
Welcome to Microsoft Q&A forum and thanks for your query.
Installing Azure Data Factory Analytics solution creates a default set of views inside the workbooks
section of the chosen Log Analytics workspace.
Could you please click on Workbooks
under General
and then click on AzureDataFactoryAnalytics
and let us know if you are able to visualize any metrics of your Data factory?
From here you can visualize the preceding metrics, you can look at the queries behind those metrics, edit the queries, create alerts, and take other actions.
Related MS doc: Monitor Data Factory metrics
Let us know how it goes.
Looking forward to your confirmation.
Thank you