Hello @Harshal Jain,
Several common build issues can prevent Azure Functions, like your Blob Trigger function, from being found after deployment. To troubleshoot, start by ensuring that the agent pool used for deployment is running on Ubuntu. This is essential for ensuring that packages are restored properly during the build step.
Next, check if your function app is located at the root of the source repository. If not, ensure the pip install step references the correct path for creating the .python_packages folder, keeping in mind that the path is case-sensitive.
Additionally, verify that the deployment package can be loaded into /home/site/wwwroot, which is usually managed by the ArchiveFiles task. If these steps don’t resolve the issue, review the deployment logs for any errors or warnings that could provide more insights into what went wrong.
For further clarification, please refer to the following documentations: Document1, Document2
I hope this helps resolve your issue. Feel free to reach out if you have further concerns.