@sac16 , thank you for posting this question.
The Azure Automation Update management stores all the logs in the "Log Analytics Workspace" which is connected to Azure Automation Account (it is one of the prerequisites for the Azure Automation Update Management). For details, see About Update Management.
The logs (which denotes the status) can be queried from this Log Analytics Workspace. The details of tables and columns where this information is stored are available in the link below. This link also contains sample queries that can be run on LA workspace to get results based on various scenarios - Query Update Management logs.
There are multiple ways to use these queries to create custom dashboards:
Hope this helps.
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