Azure Functions Support

24/7 Azure Functions Support with a 15-Minute Emergency SLA

AceMQ supports the Azure Functions workloads you run in production — hosts that stop triggering after a storage account hiccup, Service Bus triggers that will not scale with the queue, Durable orchestrations stuck on non-deterministic replay, and VNet integration silently breaking outbound calls. Every ticket reaches a named senior engineer.

Senior Azure Functions engineers on call right now — 24/7/365
15 min emergency SLA24 /7 global coverage130 + enterprise customers26 + countries served

Trusted for mission-critical Azure Functions by teams in finance, healthcare, defense, and telecom

Escalation Path

Your first hour of a Azure Functions outage

Most vendors publish an SLA number. This is what actually happens, minute by minute, when you page a senior AceMQ engineer.

T+0

You page us

Phone, email, or Slack — any channel reaches the on-call senior engineer directly. No web form, no tier-1 queue.

T+15

Named engineer live

A senior engineer who already knows your environment joins a live bridge. Zero cold-start, no re-explaining your topology.

T+30

Root cause isolated

Direct broker access, log and metric review, and a working hypothesis with a rollback plan before we touch anything.

Post

Written RCA

Documented root cause, the fix applied, and the prevention steps — delivered after every P1, not just when asked.

Response Times

SLA tiers, contractually guaranteed

Every tier reaches a senior Azure Functions engineer. There is no tier-1 triage layer to get through.

P1 — Emergency
15 min

Production down, messages not flowing, cluster or broker failure

P2 — Critical
1 hour

Severe degradation, rising error rates, approaching capacity limits

P3 — High
4 hours

Performance issues, configuration problems, non-critical failures

P4 — Standard
Next day

Questions, guidance, best practices, non-urgent improvements

Incident Triage

Azure Functions problems we fix every week

These are real symptoms from real Azure Functions production environments — and the first thing our engineers check when one comes in.

No functions are triggering at all, but the app shows as running
What we check firstConnectivity to the function app's own storage account first. The Functions host keeps its trigger leases, timer state, and Durable task hubs there — if the storage connection string rotated, the firewall changed, or a private endpoint broke, the host stops scheduling and logs almost nothing useful.
Typical resolutionUnder 1 hour
Service Bus queue depth climbing while only a few instances run
What we check firstScaling configuration for the trigger — target-based scaling settings, maxConcurrentCalls in host.json, and whether the plan's instance ceiling has been reached. Message throughput per instance can look healthy while the scale controller adds instances far too slowly.
Typical resolution1–2 hours
HTTP-triggered function occasionally takes several seconds to respond
What we check firstCold starts on the Consumption plan, seen as a large gap before the first log line of an execution. Contributors are assembly load time, dependency injection setup at startup, and a large deployment package being mounted from storage.
Typical resolution1–3 hours
A Durable Functions orchestration is stuck and never completes
What we check firstThe orchestrator code for non-deterministic operations — direct HTTP calls, DateTime.Now, new Guid, random values, or unawaited async work. Orchestrators are replayed from history, and any of these produce a different execution path on replay and wedge the instance.
Typical resolution2–4 hours
Outbound calls to an internal API started failing after a network change
What we check firstVNet integration and outbound routing settings, then DNS resolution from inside the app. Regional VNet integration only routes what you tell it to, and private DNS zone links are the most common missing piece after a network team change.
Typical resolution1–3 hours
Functions slow and timing out across the whole app, one function is busy
What we check firstApp Service Plan CPU and memory across all apps on the plan. Functions on a dedicated plan share the instance with every other app on it, so one CPU-heavy function starves unrelated ones on the same plan.
Typical resolution1–2 hours
Messages processed more than once after a deploy or scale event
What we check firstWhether the handler is idempotent and how the trigger completes messages. A restart mid-processing returns the Service Bus message for redelivery once the lock expires, so at-least-once delivery becomes visible exactly when the platform moves instances.
Typical resolution2–4 hours
Timer trigger fired late, or fired twice across instances
What we check firstThe singleton lease blob in the storage account and the host's clock skew handling. Timer triggers coordinate through a storage lease, so a storage latency spike or a stale lease produces both symptoms.
Typical resolutionSame day

Resolution times reflect typical Azure Functions engagements under an active AceMQ support contract. Every P1 closes with a written root-cause analysis.

Not on the list? Tell us what's breaking
What's Included

Everything in your Azure Functions support contract

No add-on pricing for incidents. No per-ticket charges. One contract covers the whole surface.

Emergency Incident Response

Host not triggering, queue backlog growing, orchestrations stuck, or an outbound path broken after a network change. A senior engineer joins a live bridge within 15 minutes with access to diagnose.

Root Cause Analysis

Every P1 closes with a written RCA: what failed, why, the fix applied, and the host.json, binding, or platform change that prevents recurrence. Delivered as standard, not on request.

Scaling & Cold Start Tuning

Plan selection between Consumption, Premium, and dedicated, target-based scaling configuration, prewarmed instances, startup cost reduction, and concurrency limits set against real message rates.

Durable Functions Engineering

Orchestrator determinism, fan-out and fan-in patterns, task hub sizing and partitioning, external event handling, and recovering or terminating instances that are already wedged.

Networking & Integration

VNet integration, private endpoints, DNS resolution, outbound routing, and Service Bus, Event Hubs, Storage, and Cosmos DB bindings configured for the delivery semantics you actually need.

Cost & Plan Optimisation

Execution and GB-second cost analysis, plan right-sizing, Application Insights sampling and ingest control, and honest assessment of where Premium buys you something and where it does not.

Anywhere You Run It

We support Azure Functions wherever it's deployed

Cloud, Kubernetes, bare metal, hybrid, and air-gapped — including environments where you can't give us outbound network access.

Consumption planPremium (Elastic Premium) planDedicated App Service PlanAzure Container Apps hosted functionsFunctions runtime v4 (isolated & in-process).NET, Node.js, Python, Java, PowerShellDurable Functions & task hubsAzure Service Bus & Event Hubs triggersVNet integration & private endpointsAzure Government & regulated tenantsBicep, ARM & Terraform deploymentsHybrid & multi-region estates
Why AceMQ

What you get that you don't get elsewhere

We Know the Storage Account Is the Real Dependency

The single most common Functions outage has nothing to do with your code: the host loses its storage account and quietly stops triggering. We check that first, and we design the storage, networking, and identity around it so it stops happening.

Named Engineers, Zero Cold Start

The same senior engineers stay on your account. They know your plan topology, your triggers, and your networking — so a P1 call starts with diagnosis, not twenty minutes of you explaining your subscription layout.

Deep on Service Bus and Event Hubs

Most Functions incidents are really messaging incidents — lock durations, prefetch, scaling against queue depth, ordering, and duplicate delivery. Enterprise messaging is our core discipline, not adjacent knowledge.

No Tier-1 Triage Layer

You reach a senior engineer directly by phone, email, or Slack. No help desk collecting information to pass along, and no escalation approval standing between you and someone who can actually fix it.

We Debug the Layers Azure Support Won't

Microsoft operates the platform. Your function code, bindings, host configuration, orchestrator determinism, network design, and cost profile are yours — and that is where production incidents actually originate.

Genuine Follow-the-Sun Coverage

Engineers across 26+ countries and every time zone. Your 3am incident is someone's mid-afternoon — no overnight skeleton crew, no waiting for a region to wake up.

FAQ

Azure Functions support questions

A Function App That Stops Triggering Fails Silently

Whether you need emergency response tonight or a support contract that keeps triggers, scaling, and orchestrations healthy, AceMQ staffs every engagement with a named senior engineer. Support quotes returned within 24 hours.

Get in Touch

Talk to a Support Expert

Send us a message and we'll follow up within one business day — or book a free 30-min consultation directly.

305-204-2607
info@acemq.com
66 W. Flagler St. 9th Floor
Miami, FL 33130

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