Hi @Harindrakumar Vaghasiya Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.
If you are using a free subscription, the option to create Azure functions from the portal is not supported. If you would like to try that option, you can create a pay-as-you-go
subscription and try out this approach.
An alternate and recommended approach to build complex Azure functions would be to use a tooling such as Visual Studio Code. The quick start guide Create a C# function in Azure using Visual Studio Code walks you through with all the steps needed to create a sample HTTPTrigger function. You can choose the template as TimerTrigger
in it's place and follow the prompts and enter */20 * * * * *
when prompted for a CRON expression while creation.
For local debugging, you just need to execute the function and can see the function app triggering for every 20 seconds as specified by the above CRON setting. You can then Sign in to Azure through VS Code and Deploy the app to Azure using the steps referenced in the links. Once deployed, you can see the function getting executed as per the CRON setting.
Hope this helps!
If the response helped, please do click Accept Answer and Yes for the answer provided. Doing so would help other community members with similar issue identify the solution. I highly appreciate your contribution to the community.