DP-420 exam voucher — at a glance
A prepaid exam voucher listed for Exam DP-420: Building AI Applications with Azure Cosmos DB, the exam for Microsoft Certified: Azure Cosmos DB AI Developer Associate. You choose the country or region where you will take the exam, and the price for that country or region is shown at the top of this page. Your voucher code is emailed within 24–48 hours of your order being processed, and you use it when you schedule the exam with Pearson VUE.
Note from Microsoft. Microsoft updated this certification’s name and level on October 6, 2026. It is now Microsoft Certified: Azure Cosmos DB AI Developer Associate. Microsoft says no action is required.
The batch expiry above is the date the vouchers currently on sale expire. It is not an exam date, an exam update or retirement date, or the expiry of a certification. Schedule your exam before the voucher expires, and check the date in your voucher email.
What you get
Included
- One exam voucher listed for Exam DP-420: Building AI Applications with Azure Cosmos DB, for the country or region you choose
- Your voucher code by email within 24–48 hours of your order being processed
- Instructions for entering the code when you schedule your exam with Pearson VUE
What this voucher is not
- It is not a booking. You choose your own exam date, time and delivery method when you schedule.
- It covers one exam attempt. It is not a retake package, and a resit needs a new voucher.
- It does not include training, study materials or practice exams.
- It is not a guarantee of a pass. The voucher pays for the exam attempt; the result depends on your preparation.
- It is not for a different country or region. It is for the country or region you choose at checkout.
DP-420 exam details
Exam DP-420: Building AI Applications with Azure Cosmos DB
What the exam covers
Microsoft lists these skill areas and task groups for DP-420:
- Design and develop database solutions (40–45%) — Evaluate resource models and SDK solutions; Implement database operations; Design and implement data models and partitioning strategies; Implement change feed; Design and implement Azure Cosmos DB solutions by using AI-assisted tools
- Secure, optimize, and deploy database solutions (30–35%) — Implement database security controls; Implement availability and recovery solutions; Optimize and remediate database performance; Implement Fleet management and monitoring across multiple accounts and subscriptions
- Implement AI and Analytics capabilities in database solutions (20–25%) — Design and implement AI retrieval; Design and implement agent memory stores; Design and implement operational analytics on Azure Cosmos DB
Exam update. The English-language exam was updated on October 6, 2026. Review the current DP-420 study guide on Microsoft Learn for the latest skills measured. Localized versions are usually updated about eight weeks after the English version.
Full published details are in Microsoft’s DP-420 study guide and on Microsoft Learn.
Who this voucher is for
- Preparing to sit DP-420 and ready to book it
- Building solutions with Azure Cosmos DB for NoSQL
- Working towards Microsoft Certified: Azure Cosmos DB AI Developer Associate
- Buying now to use before the voucher’s expiry date
Who Microsoft says this exam is for
As an Azure Cosmos DB Developer Associate, you design, build, and optimize cost effective high-performance scalable applications that use Azure Cosmos DB including system of record for agent memory, conversation state, retrieval indexes, grounding data, and application data.
Your responsibilities include:
- Designing and implementing data models and data distribution
- Ingesting and querying data with Azure Cosmos DB database
- Optimizing application performance, scalability, and cost
- Implementing secure and production-ready applications
- Building AI retrieval and RAG solutions
- Designing and implementing agent memory systems
- Integration of Azure Cosmos DB with Microsoft Fabric for analytical querying and operational insights
In this role, you collaborate with AI engineers, application developers, solution architects, data engineers, and security professionals to design and implement cost effective high-performance scalable applications.
You should have experience developing applications by using C# or Python. You should be familiar with Azure services, generative AI concepts, retrieval-based systems, and application development practices.
Choose your country or region
Microsoft prices its exams by the country or region where the exam is proctored, and its prices do not include applicable taxes. This voucher is sold the same way: choose the country or region where you will take the exam, and the price for that country or region is shown before you add it to your cart.
- Pick the country you will test in. The voucher is for the country or region you select at checkout. Schedule your exam in that same country or region.
- Price in US dollars. The price for each country or region is shown in US dollars at the top of this page and is the amount charged at checkout.
- Your country is not listed? Contact us before ordering.
Microsoft’s own exam price for your location is shown on the DP-420 page on Microsoft Learn when you choose a country or region.
Microsoft exam rules to know before you buy
These rules are set by Microsoft and apply to the exam whichever way you pay for it.
- Retakes. Microsoft requires a 24-hour wait after a first failed attempt and a 14-day wait between later attempts, with no more than five attempts in 12 months from the first attempt. A retake is paid for separately (retake policy).
- Rescheduling. Microsoft states that you must reschedule or cancel at least 24 hours before your appointment, or your fee will be forfeited (reschedule policy).
- Scoring. Scores are reported on a scale of 1 to 1,000, and a passing score is 700 or greater. Microsoft notes this is a scaled score, which may not equal 70% of the points (exam scoring).
- Renewal. Microsoft associate, expert and specialty certifications expire annually. You renew for free by passing an unproctored online assessment on Microsoft Learn before the certification expires (renewal).
- Microsoft Learn during the exam. Microsoft lets you open Microsoft Learn during associate and expert exams. No extra time is added.
How it works
- Choose your country or region and check the exam — this voucher is listed for Exam DP-420: Building AI Applications with Azure Cosmos DB.
- Complete checkout at the price shown for your country or region.
- Receive your voucher code by email. Your order is fulfilled by EvolveSkill and your code is emailed within 24–48 hours of your order being processed.
- Schedule your exam. Start from the exam’s Microsoft Learn page, continue to Pearson VUE, choose a test centre or online exam, and on the payment screen select “Add Voucher or Promo Code” to enter your code (Microsoft’s instructions).
Before you buy
- Confirm the exam. This voucher is listed for Exam DP-420: Building AI Applications with Azure Cosmos DB.
- Choose the right country or region. The voucher is for the country or region you select; schedule the exam there.
- Check the language. Microsoft lists DP-420 in English, Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Chinese (Traditional), Italian.
- Check the exam version. Microsoft is updating the English version of DP-420; see the exam update note above and the study guide.
- Check the expiry date. The batch on sale now expires January 1, 2027, shown above. Schedule your exam before then.
- One attempt. The voucher covers one attempt. If you need a retake, Microsoft’s retake waiting periods apply and a resit needs a new voucher.
- Cancelling your order. Once a voucher has been issued or delivered it cannot be returned or refunded. If your order has not yet been processed and the voucher has not been issued, contact us — a cancellation may still be possible. See our Refund & Cancellation Policy.
Frequently asked questions
What is the DP-420 exam voucher?
A prepaid exam voucher listed for Exam DP-420: Building AI Applications with Azure Cosmos DB. You enter the voucher code as payment when you schedule the exam with Pearson VUE.
Which certification does DP-420 count towards?
DP-420 is the exam for Microsoft Certified: Azure Cosmos DB AI Developer Associate.
How much does the DP-420 exam cost?
Microsoft prices exams by the country or region in which the exam is proctored, and its prices do not include applicable taxes. Microsoft shows the price for your location on the exam’s Microsoft Learn page.
How much does this voucher cost?
It depends on the country or region you choose. The price in US dollars is shown at the top of this page once you choose, and it is the amount charged at checkout.
Why do I need to choose a country or region?
Microsoft prices exams by the country or region where the exam is proctored, and this voucher is sold the same way. Choose the country or region where you will take the exam and schedule the exam there.
How long is the voucher valid?
The batch on sale now expires January 1, 2027. That is the voucher’s expiry, not an exam date, an exam retirement date or a certification renewal date. Schedule your exam before then.
How fast will I get my voucher?
Your voucher is fulfilled by EvolveSkill and emailed within 24–48 hours after your order is processed, along with instructions for using it.
How do I use the voucher?
Start scheduling from the exam’s Microsoft Learn page and continue to Pearson VUE. On the payment and billing screen, select “Add Voucher or Promo Code” and enter your code.
Can I take the DP-420 exam online?
Microsoft delivers online exams with Pearson VUE, monitored by a proctor through webcam and microphone. Online exams are available in most, but not all, countries and regions, so check availability when you schedule. You can also choose a Pearson VUE test centre.
How long is the DP-420 exam?
Microsoft lists 100 minutes for DP-420.
How many questions are on the DP-420 exam?
Microsoft does not publish a fixed number for DP-420. It states that most certification exams contain between 40 and 60 questions and that the number can vary by exam.
What is the passing score for DP-420?
A score of 700 or greater, on a scale of 1 to 1,000. Microsoft notes this is a scaled score, which may not equal 70% of the points.
What does the DP-420 exam cover?
Microsoft lists these skill areas: Design and develop database solutions (40–45%); Secure, optimize, and deploy database solutions (30–35%); Implement AI and Analytics capabilities in database solutions (20–25%).
Which skill area carries the most weight?
Design and develop database solutions, at 40–45% of the exam, according to Microsoft’s study guide.
Which languages is DP-420 available in?
Microsoft lists English, Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Chinese (Traditional), Italian. If the exam is not available in your preferred language, Microsoft lets you request an additional 30 minutes.
Does this cover a retake?
No. The voucher covers one exam attempt. Microsoft requires a 24-hour wait after a first failed attempt and 14 days between later attempts, with no more than five attempts in 12 months.
Can I reschedule or cancel my exam appointment?
Yes, through your Microsoft Learn profile. Microsoft states that you must reschedule or cancel at least 24 hours before the appointment, or your fee will be forfeited.
How long is the certification valid?
Microsoft associate, expert and specialty certifications expire annually. You can renew for free by passing an online assessment on Microsoft Learn before the certification expires.
Is the DP-420 certification changing?
Microsoft updated this certification’s name and level on October 6, 2026. It is now Microsoft Certified: Azure Cosmos DB AI Developer Associate. Microsoft says no action is required.
Is the DP-420 exam changing?
The English-language exam was updated on October 6, 2026. Review the current DP-420 study guide on Microsoft Learn for the latest skills measured.
Does Microsoft offer other ways to pay less for an exam?
Yes. Microsoft offers academic pricing on certification exams in most countries and regions (except India and China) to students who verify their academic status in their certification profile. Through Pearson VUE it also sells Exam Replay: one exam voucher plus one retake of the same exam, both scheduled and taken within 12 months of purchase. Compare these with the price shown here before you buy.
Does it include study materials or practice tests?
No. This product is the exam voucher only — no training course, study guide or practice exam. Microsoft publishes a free study guide for DP-420 and free practice assessments for many exams.
Does buying a voucher guarantee that I will pass?
No. The voucher pays for the exam attempt only. Passing depends on your own preparation.
What is EvolveSkill?
EvolveSkill is an independent company that sells certification exam vouchers and publishes certification guides. Microsoft sets the exam content, scoring and policies.
Who owns the Microsoft names and marks?
Microsoft, Azure, Microsoft 365, Dynamics 365, Power Platform and related names are trademarks of Microsoft Corporation. Exam names are used on this page to identify the exam this voucher is listed for.
Ready to buy?
Choose your country or region and check the exam, then add the voucher to your cart.
Planning your next Microsoft exam? Browse all Microsoft exam vouchers, including DP-300 – Administering Microsoft Azure SQL Solutions, DP-800 – Developing AI-Enabled Database Solutions and AI-200 – Developing AI Cloud Solutions on Azure.
