My flow does not trigger and I cannot tell whether Power Automate missed it
A Power Automate maker expects a SharePoint, Dataverse, Power Apps, or scheduled trigger to start a flow, but no run appears or the trigger seems to stop firing. The specific pain is proving whether the triggering event was missed, filtered, throttled, disconnected, suspended, or simply never matched the trigger conditions.
Blocker
Reviewed by Helen Jones
Reviewed by Helen JonesContext
The blocker, in a nutshell
If this blocker is unfamiliar, start here.
A Power Automate trigger is the part of a flow that listens for an event, such as a changed SharePoint item, selected Dataverse row, button click, or schedule. When no run appears, the problem may be before the first action, so the maker needs to test whether the event reached the trigger at all rather than editing the rest of the flow blindly.
Key Terms
Industry jargon explained
Click any term to see its definition.
The Reality
A day in their life
Power Automate maker responsible for a trigger-based flow
I start with a simple test: create the SharePoint item and wait for the flow. Nothing happens. There is no failed run, no useful message, and no obvious place to click next.
The small win is that the source event is real. I can see the item, the modified time, and the field value that should have matched the trigger. That should make the problem easier, but it also makes me wonder whether Power Automate missed it completely.
By mid-afternoon I have tried turning the flow off and on, checking the connection, and comparing it with a new test flow. I am not sure whether the trigger condition filtered the item out, the trigger registration broke, or I am pointing at the wrong list.
What I want is a first-mile checklist: prove the source event, prove the trigger is healthy, test with the smallest possible flow, and only then edit the actions. When there is no run, I need a way to debug the absence of evidence.
The People
Who experiences this blocker
Power Automate maker responsible for a trigger-based flow
28-55 • Beginner to intermediate
Skills
Basic cloud flow editing
SharePoint/Dataverse/Power Apps use
Run-history inspection
Business process support
Frustrations
- No run appears to inspect
- The flow worked yesterday but not today
- The source item looks correct but the trigger ignores it
Goals
- Know whether Power Automate missed the event or the event never matched the trigger
- Test the trigger before editing the rest of the flow
- Create a minimal proof flow when the main flow is too complex
Business user waiting for the automated process
Creates or updates the item and expects the flow to start without knowing the trigger diagnostics behind it.
Also affected by this blocker. Often shares the same frustrations or creates additional pressure.
Top Objections
- I already checked the action steps
- There is no error message
- I do not know if the connector is polling or webhook-based
- I do not have admin access to everything
How They Talk
Use These Words
triggerrun historyflow didn't fireSharePoint listDataverse rowbuttontrigger conditionconnection
Avoid
callback registration internalswebhook lifecycleplatform telemetryHTTP polling semantics
Learning Pathway
Power Automate Trigger Diagnostics
Prove why a flow did not start before changing the wrong steps.
Showing 2 of 2 recommendations
Course
Start Here
◆◆◆◆◆Excellent Fit
Diagnose a Power Automate Flow That Does Not Trigger
4 lessons75 minbeginner
You'll build: A completed no-trigger diagnostic record for one flow, including source-event proof, trigger-condition test, minimal-flow test, and fix/escalation decision.
Trigger conditionsNo-run diagnosticsSharePoint triggers+3 more
Course
Course Built
◆◆◆◆◆Excellent Fit
Diagnose and Prove Power Automate Flow Behaviour
6 lessons120 minbeginner
You'll build: A completed Flow Evidence Pack for one Power Automate flow, including source-event proof, run-history and sample-output capture, trigger/action/data-shape diagnosis, duplicate or missing-field classification, chosen repair/escalation path, controlled test matrix, and durable proof-log recommendation.
Includes: Flow Evidence Pack template · Run History Capture Checklist · Source Event Proof Sheet · Data Shape and Dynamic Content Map · Controlled Test Matrix · Proof Log Starter Schema
Run historyTrigger diagnosisDynamic content and data shape+3 more
Root Cause
Finding where this blocker actually starts
We traced backward through five layers of "why" until we hit the source. Here's what's really driving this.
1
Why is there no run?
The trigger may never have fired, or the trigger fired path is not visible to the maker.
2
Why would the trigger not fire?
The flow may be off or suspended, the trigger registration may be broken, trigger conditions may filter the event out, the wrong source may be selected, or permissions may block the runner/source.
3
Why is it hard to tell?
If the trigger condition is not met or the event never reaches the flow, there may be no normal failed run to inspect.
4
Why does it persist?
Citizen makers learn to debug failed actions, but no-run failures require checking the trigger, source event, connection, environment, and a minimal test flow.
5
Why does troubleshooting jump to the flow body too early?
The maker lacks a trigger-first diagnostic routine, so they inspect actions that never ran instead of proving the source event, trigger condition, connection, and registration path.
Root Cause
The root cause is lack of a first-mile trigger diagnostic: the maker needs to prove whether the event reached Power Automate and passed the trigger rules before debugging actions inside the flow.
The Numbers
How this stacks up
Key metrics that determine the opportunity value.
Overall Impact Score
81/100
Urgency
8/10
They need this fixed now
Build Difficulty
8/10
Complex, needs deep expertise
Market Size
6/10
Healthy demand exists
Competition Gap
8/10
Major gap in the market
"the flow just wouldn’t fire"
Recent thread about a flow that stopped triggering after being turned off/on. — Reddit r/MicrosoftFlow, 2026-06-01
More Evidence
What others are saying
"it triggered fine when the button is clicked, apart from the flow"
User saw the app event but no flow run for other users. — Power Platform Community, checked 2026-06-08
"Still zero"
Model-driven app trigger appeared to register a click but produced no run history. — Reddit r/PowerApps, 2026-03
"The flow had been working perfectly fine... the trigger condition completely stopped working"
"does not trigger when other users upload files"
Practitioner reported a SharePoint file-created trigger that only fired for the service-account uploader despite permissions checks. — Reddit r/PowerAutomate, 2026-04-16
The Landscape
What solutions exist today?
Current market solutions and where there are opportunities.
Leader
M
Microsoft trigger troubleshooting docs
Approach: Official checks for failed triggers, connections, trigger conditions, suspended flows, SharePoint trigger issues, and permissions.
Pricing: Free documentation
Weakness: Reference guidance still needs to be turned into a maker-friendly diagnostic routine with test evidence.
Niche
F
Forum advice: turn off/on, recreate trigger, build minimal test flow
Approach: Practitioner troubleshooting tactics for unexplained trigger failures.
Pricing: Free
Weakness: Can become superstition if the maker does not capture the cause and test proof.
G
General reliability course/problem
Approach: Broad production-hardening guidance.
Pricing: Existing Space 30 coverage
Weakness: Too broad for no-run trigger diagnostics; this problem is narrower and starts before run history exists.
The Fix
What a solution needs to succeed
The non-negotiables and nice-to-haves for any product or service tackling this blocker.
The 3 Wishes
A no-run trigger diagnostic that proves whether the source event, trigger settings, connection, and permissions are healthy before editing downstream actions.
Must Have
Source event proof
Trigger health check
Trigger condition review
Connection and permission check
Minimal test flow
Decision tree for recreate trigger versus fix conditions versus escalate
Nice to Have
Monitoring idea for expected-but-missing runs
Checklist for SharePoint and Dataverse variants
Power Apps/button test notes
Out of Scope
Guaranteeing platform outages are detectable without admin access
Custom webhook debugging
Tenant telemetry
One universal fix
Success Metrics
The learner can reproduce the event with a minimal flow or prove it does not reach the trigger
The trigger condition is verified against a test item
The connection and source permissions are checked
The next action is fix, recreate, or escalate with evidence
Solution Strategy
Which approach fits you?
A briefing can list reasons triggers fail, but the learner needs a hands-on diagnostic with a test event and minimal flow. A build spec is not earned.
What we recommend
Create one atomic troubleshooting course; no briefing or build_spec needed initially.
For Creators
Content Ideas
Marketing hooks, SEO keywords, and buying triggers to help you create content around this blocker.
Buying Triggers
Events that make people search for solutions
- A source item changes but no run appears
- A flow worked yesterday and stopped triggering
- A button or app action does not create a flow run
- The maker cannot tell whether trigger conditions filtered the event
Content Angles
Attention-grabbing hooks for your content
- No run history? Start with the trigger, not the actions
- How to prove Power Automate saw your SharePoint item
- Why turning a flow off and on is not a diagnostic plan
- The no-run checklist for Power Automate triggers
Search Keywords
What people type when looking for solutions
Power Automate trigger not firingPower Automate no run history triggerSharePoint trigger not firing Power AutomatePower Automate flow did not startPower Automate trigger condition not met
The Evidence
Where this came from
Every claim in this report is backed by public sources. Verify anything.
1.2.3.4.5.
Power Automate flow randomly stopped triggering after turning it off/on
reddit.com
When a Row is Selected trigger creates zero run history
reddit.com
Any reason why Flow wouldn't trigger even though I'm using the correct SharePoint and List?
reddit.com
Troubleshoot common issues with Power Automate triggers
learn.microsoft.com
Missing runs or triggers history for a flow
learn.microsoft.com
6 sources referenced
Source note
Blocker published by Collab365 Spaces, reviewed by Helen Jones on . Cite as "My flow does not trigger and I cannot tell whether Power Automate missed it", Collab365 Spaces. 6 sources referenced.
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