Globally unique resources that provide access to data management services and serve as the parent namespace for the services.
@Dave I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to "Accept " the answer.
Issue: Trying to get usage metrics from trusted monitoring to avoid exceeding the monthly cap and incurring extra charges. Following the steps to store logs from trusted signing in an Azure storage account, I encounter the error "This request is not authorized to perform this operation" when selecting the container. Despite using the same account to create both the storage and trusted signing accounts, and adding the diagnostic setting, I still can't access the logs.
Solution: After inital troubleshooting, you were able to fix the issue.
The issue was related to network access. Once I added a firewall rule, it resolved the problem.
Please let us know if you have any more questions and we will be glad to assist you further. Thank you!