AZ-104 Voucher

https://events.microsoft.com/en-us/Allevents/?language=English
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There are a few ways to get a free voucher for the AZ-104 certification exam. One way is to check with your employer, as they may offer vouchers as part of their training and development program. Another way is to check with Microsoft, as they may offer vouchers as part of a promotion or through their Microsoft Imagine program for students. Additionally, some training providers may offer vouchers as part of their training courses. It's worth noting that these vouchers are often limited in number and for a specific time period and it's always better to check the terms and conditions and availability before making any decision.

It’s not a free exam, but there’s currently a Cloud Skills challenge running which offers a 50% off voucher: https://developer.microsoft.com/en-us/offers/30-days-to-learn-it

I want to take too but events only for az-900 take only one time, if u fail u f.... , i need for az-104 , or az-500 , how to find it , i have check the Microsoft Ignite and nothing for 2022,

The most common way of obtaining free or discounted exam vouchers is by attending Microsoft events. You may visit the Microsoft Events Catalog page to check upcoming events.

https://events.microsoft.com/en-us/Allevents/?language=English

Also keep an eye out for Cloud Skill Challenges on Microsoft Learn, completing learning paths usually give you a free exam voucher, which usually covers AZ-104. I am not sure when the next one is, however (they usually run around MS events such as Microsoft Ignite).