Automation Trends, Dynamics 365 Testing
Do I Need Test Automation for Dynamics 365 if I Already Use RSAT?
Introduction
For enterprises running Microsoft Dynamics 365 (D365), Dynamics 365 test automation often starts with Microsoft's own Regression Suite Automation Tool (RSAT), and for many teams it stops there too. RSAT can record and replay functional regression tests, but it cannot validate performance, cross-browser behavior, and Microsoft has confirmed the tool's official end of support for May 15, 2027. Teams running D365 at scale need a plan for what covers the gap RSAT leaves behind, and for what replaces it once support ends.
Key takeaways
RSAT is free and natively integrated with D365, but it can't test performance, cross-browser behavior, and it depends on PowerShell scripting and manual Excel work to maintain.
Microsoft has confirmed RSAT's official end of support for May 15, 2027. After that date, there is no maintenance, no bug fixes, and no support, so any regression suite still running on RSAT needs a migration plan now.
D365 ships two major release waves a year plus monthly minor updates, and each one is a chance for an untested change to break a live process.
No-code platforms like Avo Assure let business analysts and functional consultants build and maintain tests without writing code, closing the gap RSAT leaves in cross-module and non-functional coverage.
A UK fashion retailer running D365 moved off RSAT onto Avo Assure and replaced a multi-week, multi-tester manual regression cycle with a fast, no-code automated suite, freeing its testers for higher-value validation work instead of repetitive script maintenance.
The RSAT Illusion
For many enterprises operating in the Microsoft Dynamics 365 (D365) ecosystem, Microsoft's Regression Suite Automation Tool (RSAT) appears to be the default path for automated testing. It's free, built by Microsoft, and tightly integrated with Task Recorder and DevOps. But is that enough?
At first glance, RSAT offers an appealing entry point into test automation. However, when D365 environments become more complex, business process coverage deepens, and the need for regression testing scales across multiple updates, RSAT's limitations start to show.
This is the story of a UK-based fashion retailer with more than 40 stores and a multi-channel D365 implementation. The retailer believed RSAT would meet its testing needs, until it didn't.
Act I: The RSAT Plateau
The retailer began its D365 journey with RSAT. Its goal was simple: avoid manual regression testing during Microsoft's continuous updates. The team used Task Recorder to generate test cases and fed them into RSAT for execution.
What Worked Initially
|
RSAT Advantage |
Description |
|
Native D365 Integration |
RSAT syncs easily with D365 via Task Recorder. |
|
Azure DevOps Connectivity |
Out-of-the-box integration with Azure DevOps test plans. |
|
Zero-cost Licensing |
As a Microsoft tool, RSAT comes at no additional licensing cost. |
But challenges began to surface:
Where RSAT Fell Short
|
RSAT Limitation |
Business Impact |
|
Non-functional coverage |
No ability to test performance or cross-browser. |
|
Code dependency |
Required PowerShell scripting and Excel manipulation. |
|
Lack of scalability |
Increased maintenance overhead with expanding test cases. |
|
No cross-module orchestration |
Tests could not span across Finance, SCM, and CRM processes. |
There's also a deadline attached to this decision. Microsoft has confirmed RSAT's official end of support: May 15, 2027. After that date, there's no maintenance, no bug fixes, and no support. Teams with large regression suites should start planning the move now, not when the deadline is weeks away.
Not sure where your regression suite stands before that deadline? Download the D365 Regression Checklist to see how your test coverage measures up.
Act II: The Breaking Point
D365 ships two major release waves a year, plus monthly minor updates, and each one carries the potential to break something in production. The retailer faced what many D365 enterprises encounter: upgrade fatigue, continuous cycles of manual validations, broken test scripts, and failed deployments.
This created:
- Delays in go-lives
- Low test coverage across modules
- Inability to validate third-party integrations
- Heavy reliance on functional subject matter experts
The retailer's IT team began evaluating purpose-built automation platforms that could scale, were no-code, and offered full-stack regression capabilities.
Act III: Enter Avo Assure
Enterprises like this one understood the need for better test automation and transitioned to Avo Assure, Avo's no-code platform for Dynamics 365 business process assurance, built on Business-Aware, Accountable AI.
Why Avo Assure?
|
Feature |
RSAT |
Avo Assure |
|
Cross-module support |
No |
Finance, SCM, Retail, CRM |
|
No-code test creation |
No |
Drag-and-drop logic |
|
Integration testing |
No |
Web, desktop, APIs |
|
Smart test scheduling |
No |
CI/CD friendly |
|
Risk and business-impact dashboards |
No |
Yes |
|
AI-powered test maintenance |
No |
Yes |
Measurable Outcomes: Before vs. After
|
Metric |
With RSAT |
With Avo Assure |
|
Manual testing effort |
High, manual regression every cycle |
Substantially reduced through no-code, reusable automation |
|
Full regression cycle time |
Multiple weeks with a multi-person testing team |
Reduced to days through parallel, automated execution |
|
Test case coverage |
RSAT-dependent, script-heavy |
Broad automated coverage built and maintained without code |
|
Test case maintenance effort |
High |
Low, no-code, reusable flows |
|
User acceptance testing support |
Manual |
Fully automated |
|
Integration and UI testing |
Not supported |
Fully supported |
Avo Assure's pre-built D365 libraries help teams build test cases without writing code. Parallel execution meant the retailer could run its full regression suite in a fraction of the time it previously took a multi-person testing team working manually.
Strategic Impact
Transitioning to Avo Assure didn't just reduce test effort. It transformed the entire delivery model:
- From reactive to proactive QA: Tests are now created before the update lands.
- Release acceleration: Microsoft updates now roll into production faster, with fewer hotfixes.
- Improved compliance: Better documentation and audit trails.
- Empowered business users: No-code interfaces let subject matter experts contribute to test scenarios.
Conclusion: RSAT Is a Start, Not the Strategy
RSAT gets you started, but it wasn't built to carry a full-scale D365 rollout.
If your organization:
- Relies on end-to-end scenarios across Finance, SCM, CRM, and Retail
- Needs to support frequent D365 updates and hotfixes
- Wants to automate beyond just regression
- Requires testing for web, desktop and APIs
...then RSAT won't cut it.
Avo Assure proves what no-code test automation can actually do at enterprise scale. This retailer's experience is a testament to what can be achieved when you choose a platform that's built for the complexity of enterprise D365 ecosystems.
Every Dynamics 365 release is a business risk. Avo turns it into a competitive advantage.Book your D365 demo to see how Business-Aware, Accountable AI can assure your next release, or download the D365 Regression Checklist to start planning your move off RSAT.
Frequently Asked Questions:
Is RSAT being retired?
Yes. Microsoft has confirmed RSAT's...
Yes. Microsoft has confirmed RSAT's official end of support for May 15, 2027. After that date, there is no maintenance, no bug fixes, and no support for the tool.
What can't RSAT test in Dynamics 365?
RSAT covers functional regression...
RSAT covers functional regression through Task Recorder, but it has no built-in way to test performance, cross-browser behavior, and it can't orchestrate a single test across Finance, SCM, and CRM in one flow.
How often does Microsoft update Dynamics 365?
D365 ships two major release...
D365 ships two major release waves a year, plus monthly minor updates for critical fixes and regulatory changes. Each one is a chance for an untested change to reach production.
Do I need to know how to code to use Avo Assure?
No. Avo Assure is a no-code platform...
No. Avo Assure is a no-code platform, so business analysts, functional consultants, and process owners can build and maintain tests without writing scripts.
What systems does Avo Assure test beyond Dynamics 365?
Avo Assure covers SAP, Oracle...
Avo Assure covers SAP, Oracle, Salesforce, ServiceNow, and custom enterprise applications alongside D365, plus the integrations connecting them.
What results has a real D365 customer seen after replacing RSAT?
A UK-based fashion retailer running...
A UK-based fashion retailer running D365 and a connected ecommerce platform replaced a multi-week, multi-tester manual regression cycle with a fast, automated suite built and maintained without code, cutting regression time from weeks to days and freeing its testers to focus on higher-value validation work instead of script maintenance
How do I start moving off RSAT before the 2027 deadline?
Start by mapping your existing...
Start by mapping your existing RSAT test assets against your critical business processes. Avo's D365 Regression Checklist walks through that process, or you can book a D365 demo to see how Avo migrates existing RSAT assets into resilient automation.