Shopify operational intelligence
Watch the store with Hollow Sentinel.
Daily briefings, health scores, store memory, and revenue-at-risk signals that help Shopify merchants understand what changed, what matters, and where to act next.
The problem
Most store issues whisper. They rarely raise their hand.
Dashboards and reports show what moved. They rarely tell your team what changed together, what is unusual for your store, or where to look first.
Soft revenue dip
Tuesday looks a little light. Could be traffic. Could be timing. Easy to explain away.
Without your store baseline, a normal bad day and a real shift can look the same.
Dashboards and reports show what moved. They rarely tell your team what changed together, what is unusual for your store, or where to look first.
The symptoms are everywhere.
The story connecting them is not.
What Sentinel delivers
Operational visibility without another spreadsheet.
Hollow Sentinel turns daily store activity into clear operator signals — helping you see what changed, what may be at risk, and what deserves attention before small issues become expensive problems.
Daily briefings
Start each day with the signals that matter. Get a focused morning summary of store activity, meaningful changes, partial-day context, and where your team should look first — in-app on every plan; email via your Resend key or managed delivery on Growth+; Slack on Growth and above.
Health scores
Understand store health at a glance. Track growth, operations, customer, and experience signals against your own store baseline on every plan — with industry peer benchmarks on Growth and above.
Insights & store memory
Connect today's activity to yesterday's context. Sentinel keeps a historical record of store changes, catalog shifts, theme edits, and operational patterns so issues are easier to explain.
Revenue at risk
On Growth and above, spot problems before they quietly cost you. Identify unresolved issues, possible revenue impact, and recommended next actions — with deeper playbook support when paired with Arcanum Engine.
Why it matters
Drift is quiet until it is expensive.
When every issue starts from zero context
- Your team asks what changed, then digs through Shopify admin, Slack threads, and half-remembered edits.
- Small issues get ignored because no one is sure whether they are normal for your store.
- Bigger problems get discovered late — after revenue, conversion, or customer trust has already moved.
Sentinel gives those changes a memory.
So your team is not rebuilding the story every time something feels off.
From signal to action
How Hollow Sentinel watches the store.
Sentinel connects to your Shopify store, observes meaningful activity, detects unusual patterns, explains what changed, and recommends where to focus next.
01
Observe
Sentinel monitors store activity, order behavior, catalog changes, and operational signals that are easy to miss day to day.
02
Detect
Unusual patterns, revenue shifts, inventory issues, customer changes, and operational drift are surfaced before they become harder to diagnose.
03
Explain
Signals are connected to store history, recent changes, and baseline context so your team understands what likely happened and why it matters. Growth+ adds AI-assisted root cause narratives and bounded Ask Sentinel Q&A.
04
Recommend
Sentinel highlights the next best actions. When paired with Arcanum Engine, those recommendations can become guided operational playbooks.
Plans & pricing
Choose the level of store visibility your team needs.
Start with daily operational awareness, then add deeper monitoring, integrations, and strategic support as your store becomes more complex.
Hollow Sentinel plans
| Package | Investment | Best for |
|---|---|---|
| Hollow Sentinel Starter | $29/month | Smaller Shopify stores that need simple daily visibility |
| Hollow Sentinel Growth | $99/month | Growing brands that need stronger monitoring and team awareness |
| Hollow Sentinel Scale | $299/month | Established stores with more catalog, customer, and operational complexity |
| Hollow Sentinel Enterprise | $1,499+/month | Large merchants, agencies, or multi-store teams needing custom support |
Sentinel works as a standalone Shopify intelligence layer or alongside Arcanum Engine for recommended playbooks, deeper workflows, and connected operational systems. Starter includes a 14-day learning period and an initial store scan on install. Scale adds daily experience monitoring and executive briefings.
Resources
Start watching the store with more context.
Use these resources to understand how Sentinel works, what to check first, and how it compares to dashboards, alerts, and business intelligence tools.
Frequently Asked Questions
Questions before you start watching the store.
A few practical answers about how Hollow Sentinel works, who it is for, and how it fits with the rest of the Arcanum Hollow ecosystem.
What does Hollow Sentinel actually do?
Hollow Sentinel monitors meaningful Shopify store activity and turns it into daily operational intelligence: briefings, health signals, store memory, anomaly insights, and revenue-at-risk indicators on Growth and above.
Is Hollow Sentinel a dashboard?
Not exactly. Dashboards show data. Sentinel helps explain what changed, what may matter, and where to look next. It is designed to reduce the "what am I supposed to do with this?" problem.
Does Sentinel require Arcanum Engine?
No. Sentinel can run on its own. When paired with Arcanum Engine, Sentinel's insights can connect to recommended playbooks and more advanced operational workflows.
Who is Sentinel best for?
It is best for Shopify merchants who want better daily visibility into store health, customer activity, catalog changes, operational drift, and potential revenue issues without building a custom reporting system.
How long does it take Sentinel to become useful?
Sentinel can begin surfacing information after your first store snapshot, but it becomes more valuable over a 14-day learning period as it builds your store's baselines and historical context.
Is this replacing analytics tools?
No. Sentinel is not meant to replace Shopify Analytics, GA4, or BI tools. It sits beside them as an operational intelligence layer that helps teams interpret change and decide where to focus.
