Logic App Storage Inspector Adds Read-Only Diagnostics for Azure Workflows

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Logic App Storage Inspector was introduced on Microsoft's Azure Integration Services Blog on September 3, 2026, and highlighted again in the September 7 Logic Apps Aviators newsletter.

The tool is a Kudu site extension for Azure Logic Apps Standard. It gives engineers another way to inspect the storage behind their workflows. This is a separately installed diagnostic extension; the announcement should not be read as a new built-in portal feature or a general-availability declaration for a managed Azure service.

For teams debugging an intermittent integration failure, the appeal is practical: investigate the stored execution evidence without turning the investigation itself into a storage-repair operation. Announcement and September newsletter.

What the Inspector Provides

Microsoft's announcement describes three main views:

Search trigger and action inputs or outputs by workflow, date, and text, with CSV or JSON export.
Browse workflow versions and compare their definitions.
Inspect workflow-table information, queue depths, and health indicators.

The stated storage behavior is read-only: the extension does not create, update, or delete workflow storage data. That is useful during diagnosis, but it does not mean installation, access, or exported records require no operational controls.

Why Storage Belongs in a Logic Apps Investigation

Microsoft's Logic Apps documentation explains that stateful workflows in the single-tenant runtime generate storage transactions. Queues support scheduling, while tables and blobs store workflow state. The storage requirements depend on the triggers, actions, and payloads involved. Logic Apps storage and cost documentation.

My takeaway is operational rather than financial: when an integration behaves unexpectedly, the workflow designer is only one view of the system.

For example, a workflow definition may look correct while one specific execution contains an unexpected value. An investigation needs to connect the definition, the relevant run, and the behavior of downstream systems before deciding what to change.

Where It Fits Beside Azure Monitor

Azure Monitor remains part of the monitoring foundation. Logic Apps diagnostic settings can send workflow runtime events to destinations including Log Analytics, storage, and Event Hubs. Microsoft also notes that resource-log delivery is not transactionally guaranteed and can be delayed. Workflow diagnostic-data guidance.

Use that distinction when investigating an incident. A missing log entry is a reason to check another signal, not proof that the corresponding business event never occurred.

The inspector is an additional diagnostic view. Keep alerting, operational dashboards, and application-level reconciliation in place.

Start with a Narrow Investigation

Here is an illustrative approach I would use for a nonproduction evaluation.

Assume a workflow usually processes requests successfully, but a small subset starts failing after a deployment. Begin with a known failed run and a comparable successful run from the same period.

Search only the relevant workflow and time window. Compare the available input values, identify the version associated with the investigation, and write down a testable explanation.

Then reproduce the failure with synthetic data. If the explanation is correct, the test should fail before the proposed fix and pass afterward. If it does not, gather more evidence before changing workflow logic.

This keeps the investigation focused on a causal question rather than an unrestricted search through production history.

Installation and Access Boundaries

The author's repository documents installation through Development Tools → Advanced Tools → Kudu, followed by Site extensions → Gallery. It also notes that Kudu may request an SCM-site restart.

The inspector requires access to the Logic App's Kudu site. Its configuration can use the application's storage settings; the repository describes managed-identity configuration and the need for the relevant storage data-reader permissions.

The project also describes site-scoped table and queue access when storage is shared, and paged, cancellable asynchronous operations. Review the current package and repository before adopting it. Author's repository and installation guidance.

I would install it in a nonproduction environment first and confirm that its runtime and authentication assumptions match that environment. Do not enable broader publishing access or weaken storage networking simply to make a diagnostic tool convenient.

Read-Only Still Needs Discipline

My recommended operating rules are straightforward:

Use the smallest workflow and time range that can answer the incident question.
Treat exported inputs and outputs as application data with the same handling requirements as the originals.
Remove secrets and personal information before attaching evidence to an incident ticket.
Confirm which site is being inspected before interpreting shared-storage results.
Keep any eventual replay, repair, or workflow edit in a separate approved change.

A queue-depth observation is also a snapshot. Collect repeated observations and correlate them with execution progress before describing a backlog as stuck.

What a Useful Pilot Should Prove

Test with a known successful run, a known failed run, and a controlled workflow-version change. Verify that the investigation can find the expected evidence.

Also test the cases that are easy to overlook: an empty result, denied access, a large result set, and cancellation of a search. Record the package version and any prerequisites so another engineer can repeat the setup.

The acceptance criterion is not merely that the extension opens. It should help answer a real diagnostic question without adding unnecessary access or disrupting the workload.

Practical Cloud Engineer Takeaway

Storage Inspector is worth evaluating when your Logic Apps Standard troubleshooting regularly requires searching execution payloads or comparing stored workflow definitions.

Keep the read-only investigation separate from corrective action. A good diagnostic tool should improve the evidence behind a change, not become an excuse to skip the change process.

Bottom Line

This September addition gives Logic Apps engineers a focused inspection option. Its value will depend on how well it fits your existing access controls, monitoring practices, and incident workflow.

Start small, verify its behavior, and document where it helps.