Functions does not show up in my Azure Function App

Question

Functions does not show up in my Azure Function App

Zahan Khurram 0

My Plan is Flex Consumption, First I was deploying with GitHub Actions and everything was working perfectly until one day, it showed me that it was successfully deployed but the functions were not showing in the Portal, then for some reason when I tried to run Actions workflow again, it gave me this error (attached in the screenshot). User's image

Now, I completely Moved from CICD to Zip deployment, I used both methods

1- Manually Zipping my Node-JS Functions and deploying to Function app
2- Deploying Directly from VSCode Azure extension

Both of these methods says successfully deployed, Complete Log stream of my Azure Function App is:

2025-11-28T07:00:00Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T07:00:03Z   [Information]   Starting deployment pipeline.
2025-11-28T07:00:03Z   [Information]   [Kudu-SourcePackageUriDownloadStep] Skipping download. Zip package is present at /tmp/zipdeploy/ea0d5d0f-64f4-4047-95e0-e3d2c629b43c.zip
2025-11-28T07:00:03Z   [Information]   [Kudu-ValidationStep] starting.
2025-11-28T07:00:03Z   [Information]   [Kudu-ValidationStep] completed.
2025-11-28T07:00:03Z   [Information]   [Kudu-ExtractZipStep] starting.
2025-11-28T07:00:09Z   [Information]   [Kudu-ExtractZipStep] completed.
2025-11-28T07:00:09Z   [Information]   [Kudu-ContentValidationStep] starting.
2025-11-28T07:00:09Z   [Information]   [Kudu-ContentValidationStep] completed.
2025-11-28T07:00:09Z   [Information]   [Kudu-PreBuildValidationStep] Skipping pre-build validation (remotebuild = false).
2025-11-28T07:00:09Z   [Information]   [Kudu-OryxBuildStep] Skipping oryx build (remotebuild = false).
2025-11-28T07:00:09Z   [Information]   [Kudu-PostBuildValidationStep] starting.
2025-11-28T07:00:09Z   [Information]   [Kudu-PostBuildValidationStep] completed.
2025-11-28T07:00:09Z   [Information]   [Kudu-PackageZipStep] starting.
2025-11-28T07:00:30Z   [Verbose]   Ping Status: {
  "hostState": "Running"
}
2025-11-28T07:00:30Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T07:00:40Z   [Information]   [Kudu-PackageZipStep] completed.
2025-11-28T07:00:40Z   [Information]   [Kudu-UploadPackageStep] starting.
2025-11-28T07:01:00Z   [Verbose]   Ping Status: {
  "hostState": "Running"
}
2025-11-28T07:01:00Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T07:01:01Z   [Information]   [Kudu-UploadPackageStep] completed. Uploaded package to storage successfully.
2025-11-28T07:01:01Z   [Information]   [Kudu-RemoveWorkersStep] starting.
2025-11-28T07:01:01Z   [Information]   [Kudu-RemoveWorkersStep] completed.
2025-11-28T07:01:01Z   [Information]   [Kudu-SyncTriggerStep] starting.
2025-11-28T07:01:30Z   [Verbose]   Ping Status: {
  "hostState": "Running"
}
2025-11-28T07:01:30Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T07:02:01Z   [Information]   [Kudu-CleanUpStep] starting.
2025-11-28T07:02:02Z   [Information]   [Kudu-CleanUpStep] completed.
2025-11-28T07:02:02Z   [Information]   Finished deployment pipeline.
2025-11-28T07:02:34Z   [Information]   [Kudu-SyncTriggerStep] completed.
2025-11-28T07:02:52Z   [Verbose]   Ping Status: {
  "hostState": "Running"
}
2025-11-28T07:02:52Z   [Verbose]   Initiating background SyncTriggers operation
2025-11-28T07:02:52Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T07:02:52Z   [Information]   Loading functions metadata
2025-11-28T07:02:52Z   [Information]   Reading functions metadata (Custom)
2025-11-28T07:02:52Z   [Information]   0 functions found (Custom)
2025-11-28T07:02:52Z   [Information]   0 functions loaded
2025-11-28T07:02:52Z   [Information]   Loading functions metadata
2025-11-28T07:02:52Z   [Information]   Reading functions metadata (Custom)
2025-11-28T07:02:52Z   [Information]   0 functions found (Custom)
2025-11-28T07:02:52Z   [Information]   0 functions loaded
2025-11-28T07:02:59Z   [Verbose]   Ping Status: {
  "hostState": "Running"
}

It says 0 functions loaded, probably that is why it is not displaying Azure functions in my Function APP (Screenshot Attached)
User's image

I am also Attaching Screenshot of my Structure of Azure functions
User's image

Let me know If any More requirements need to be gathered by your team

Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-11-28T07:35:49.6233333+00:00
Hi @Zahan Khurram,

Thanks for reaching out to Microsoft Q&A.

Are you able to sync the triggers when you are running the function locally? Try deploying your function with function core tools command func azure functionapp publish functionappname.

Ensure that your Azure Functions are organized according to the required folder structure.

Confirm connection to the storage account is properly configured.

Since your logs mention "0 functions loaded," double-check the deployment output for errors. Although it says deployment was successful, there might have been warnings about the functions not being processed correctly. You can also check the Kudu SCM log files for any issues that occurred during startup.

Enable Application Insights and check the logs=>run Exceptions to check what might be going wrong.

Zahan Khurram 0

I have used func azure functionapp publish functionappname command in vscode terminal to deploy, the output is:

Getting site publishing info...
[2025-11-28T09:02:57.852Z] Starting the function app deployment...
[2025-11-28T09:02:57.859Z] Creating archive for current directory...
Uploading 15.39 MB [##############################################################################]
Deployment in progress, please wait...
Starting deployment pipeline.
[Kudu-SourcePackageUriDownloadStep] Skipping download. Zip package is present at /tmp/zipdeploy/1b429f02-fe94-45aa-8a59-df28fab00c89.zip
[Kudu-ValidationStep] starting.
[Kudu-ValidationStep] completed.
[Kudu-ExtractZipStep] starting.
[Kudu-ExtractZipStep] completed.
[Kudu-ContentValidationStep] starting.
[Kudu-ContentValidationStep] completed.
[Kudu-PreBuildValidationStep] Skipping pre-build validation (remotebuild = false).
[Kudu-OryxBuildStep] Skipping oryx build (remotebuild = false).
[Kudu-PostBuildValidationStep] starting.
[Kudu-PostBuildValidationStep] completed.
[Kudu-PackageZipStep] starting.
[Kudu-PackageZipStep] completed.
[Kudu-UploadPackageStep] starting.
[Kudu-UploadPackageStep] completed. Uploaded package to storage successfully.
[Kudu-RemoveWorkersStep] starting.
[Kudu-RemoveWorkersStep] completed.
[Kudu-SyncTriggerStep] starting.
[Kudu-CleanUpStep] starting.
[Kudu-CleanUpStep] completed.
Finished deployment pipeline.
Checking the app health.... done
[2025-11-28T09:07:58.769Z] The deployment was successful!
Functions in func-aitc-iot-listener:

Below is Function App log stream logs:

2025-11-28T09:05:48Z   [Information]   Starting deployment pipeline.
2025-11-28T09:05:48Z   [Information]   [Kudu-SourcePackageUriDownloadStep] Skipping download. Zip package is present at /tmp/zipdeploy/1b429f02-fe94-45aa-8a59-df28fab00c89.zip
2025-11-28T09:05:48Z   [Information]   [Kudu-ValidationStep] starting.
2025-11-28T09:05:48Z   [Information]   [Kudu-ValidationStep] completed.
2025-11-28T09:05:48Z   [Information]   [Kudu-ExtractZipStep] starting.
2025-11-28T09:05:49Z   [Information]   [Kudu-ExtractZipStep] completed.
2025-11-28T09:05:49Z   [Information]   [Kudu-ContentValidationStep] starting.
2025-11-28T09:05:49Z   [Information]   [Kudu-ContentValidationStep] completed.
2025-11-28T09:05:49Z   [Information]   [Kudu-PreBuildValidationStep] Skipping pre-build validation (remotebuild = false).
2025-11-28T09:05:49Z   [Information]   [Kudu-OryxBuildStep] Skipping oryx build (remotebuild = false).
2025-11-28T09:05:49Z   [Information]   [Kudu-PostBuildValidationStep] starting.
2025-11-28T09:05:49Z   [Information]   [Kudu-PostBuildValidationStep] completed.
2025-11-28T09:05:49Z   [Information]   [Kudu-PackageZipStep] starting.
2025-11-28T09:05:50Z   [Information]   [Kudu-PackageZipStep] completed.
2025-11-28T09:05:50Z   [Information]   [Kudu-UploadPackageStep] starting.
2025-11-28T09:05:51Z   [Information]   [Kudu-UploadPackageStep] completed. Uploaded package to storage successfully.
2025-11-28T09:05:51Z   [Information]   [Kudu-RemoveWorkersStep] starting.
2025-11-28T09:05:51Z   [Information]   [Kudu-RemoveWorkersStep] completed.
2025-11-28T09:05:51Z   [Information]   [Kudu-SyncTriggerStep] starting.
2025-11-28T09:06:51Z   [Information]   [Kudu-CleanUpStep] starting.
2025-11-28T09:06:51Z   [Information]   [Kudu-CleanUpStep] completed.
2025-11-28T09:06:51Z   [Information]   Finished deployment pipeline.
2025-11-28T09:06:57Z   [Information]   [Kudu-SyncTriggerStep] completed.
2025-11-28T09:07:27Z   [Verbose]   Initiating background SyncTriggers operation
2025-11-28T09:07:27Z   [Information]   Loading functions metadata
2025-11-28T09:07:27Z   [Information]   Reading functions metadata (Custom)
2025-11-28T09:07:27Z   [Information]   0 functions found (Custom)
2025-11-28T09:07:27Z   [Information]   0 functions loaded
2025-11-28T09:07:27Z   [Information]   Loading functions metadata
2025-11-28T09:07:27Z   [Information]   Reading functions metadata (Custom)
2025-11-28T09:07:27Z   [Information]   0 functions found (Custom)
2025-11-28T09:07:27Z   [Information]   0 functions loaded
2025-11-28T09:07:41Z   [Verbose]   Ping Status: {   "hostState": "Running" }
2025-11-28T09:07:41Z   [Information]   Executing StatusCodeResult, setting HTTP status code 200
2025-11-28T09:07:58Z   [Verbose]   AuthenticationScheme: WebJobsAuthLevel was successfully authenticated.
2025-11-28T09:07:58Z   [Verbose]   Authorization was successful.
2025-11-28T09:07:58Z   [Information]   Host Status: {   "id": "58ab05610d704acc5e1b2d0deb1530e3",   "state": "Running",   "version": "4.1045.200.25555",   "versionDetails": "4.1045.200+ef15b0c233fa26e3039e172fff93f12f11609091",   "platformVersion": "",   "instanceId": "0--0f491028-fca6-4aeb-ab83-b510a31c3c6f",   "computerName": "",   "processUptime": 1403685,   "functionAppContentEditingState": "NotAllowed",   "extensionBundle": {     "id": "Microsoft.Azure.Functions.ExtensionBundle",     "version": "3.40.0"   } }

About Your question regarding Function app structure, I have uploaded screenshot of my code structure, can you confirm if its right

Zahan Khurram 0 Reputation points

2025-11-28T09:20:33.24+00:00

Exception query returns nothing too
Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-11-28T11:25:57.9866667+00:00

Run npm build locally prior to deployment to ensure that everything is building correctly and try deploying the function again. Make sure you have host.json in the root directory of the function project.
Rakesh Mishra 3,790 Reputation points Microsoft External Staff Moderator

2025-12-01T10:42:39.3+00:00

Hi @Zahan Khurram , following up to see if you had a chance to check Pravallika's previous response and if it was helpful. Please do let me know if you're still facing the issue and need any further assistance on this.

If yes, I have reached out to you on Private message regarding some information. Could you please see and share the requested information.
Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-12-03T17:51:31.1366667+00:00
Hi @Zahan Khurram , Thanks for the confirmation. Glad you were able to resolve the issue.

I'm summarizing and posting the fix, so that this can be beneficial to other community members

Solution:

The root cause of the issue was a missing dependency that did not appear in any Azure logs. After containerizing the functions and running them in containers, the logs revealed the missing dependency, which allowed the problem to be identified and fixed.

When an Azure Function fails to load because of a missing dependency, the Azure Portal often does not show this error. The platform fails during the function discovery phase, so the runtime never gets far enough to write the exception to standard Function logs (Application Insights, Log Stream, Monitor => Invocations, etc.).

Here's how these errors can be surfaced in the portal:

Kudu console => LogFiles => eventlog.xml or host.json startup logs, Kudu often shows startup/runtime loading errors that the portal hides.

Path:

https://<yourfunctionapp>.scm.azurewebsites.net Debug Console → LogFiles → eventlog.xml Debug Console → LogFiles → Application → Functions → host

Application Insights => Failures => Exceptions, only works if the function runtime starts and can emit logs.

Function App => Diagnose & Solve Problems => Function Runtime Issues

1 answer

Your answer

Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-11-28T07:35:49.6233333+00:00

Hi @Zahan Khurram,

Thanks for reaching out to Microsoft Q&A.

Are you able to sync the triggers when you are running the function locally? Try deploying your function with function core tools command func azure functionapp publish functionappname.

Ensure that your Azure Functions are organized according to the required folder structure.

Confirm connection to the storage account is properly configured.

Since your logs mention "0 functions loaded," double-check the deployment output for errors. Although it says deployment was successful, there might have been warnings about the functions not being processed correctly. You can also check the Kudu SCM log files for any issues that occurred during startup.

Enable Application Insights and check the logs=>run Exceptions to check what might be going wrong.
Zahan Khurram 0 Reputation points

2025-11-28T09:20:33.24+00:00

Exception query returns nothing too
Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-11-28T11:25:57.9866667+00:00

Run npm build locally prior to deployment to ensure that everything is building correctly and try deploying the function again. Make sure you have host.json in the root directory of the function project.
Rakesh Mishra 3,790 Reputation points Microsoft External Staff Moderator

2025-12-01T10:42:39.3+00:00

Hi @Zahan Khurram , following up to see if you had a chance to check Pravallika's previous response and if it was helpful. Please do let me know if you're still facing the issue and need any further assistance on this.

If yes, I have reached out to you on Private message regarding some information. Could you please see and share the requested information.
Pravallika KV 2,845 Reputation points Microsoft External Staff Moderator

2025-12-03T17:51:31.1366667+00:00

Hi @Zahan Khurram , Thanks for the confirmation. Glad you were able to resolve the issue.

I'm summarizing and posting the fix, so that this can be beneficial to other community members

Solution:

The root cause of the issue was a missing dependency that did not appear in any Azure logs. After containerizing the functions and running them in containers, the logs revealed the missing dependency, which allowed the problem to be identified and fixed.

When an Azure Function fails to load because of a missing dependency, the Azure Portal often does not show this error. The platform fails during the function discovery phase, so the runtime never gets far enough to write the exception to standard Function logs (Application Insights, Log Stream, Monitor => Invocations, etc.).

Here's how these errors can be surfaced in the portal:

Kudu console => LogFiles => eventlog.xml or host.json startup logs, Kudu often shows startup/runtime loading errors that the portal hides.

Path:

https://<yourfunctionapp>.scm.azurewebsites.net Debug Console → LogFiles → eventlog.xml Debug Console → LogFiles → Application → Functions → host

Application Insights => Failures => Exceptions, only works if the function runtime starts and can emit logs.

Function App => Diagnose & Solve Problems => Function Runtime Issues

Answer 1

Hi Zahan,
The line 0 functions found (Custom) during SyncTriggers means the Functions runtime cannot discover any valid functions in the package, even though Kudu shows a successful deployment.

On Flex Consumption the app runs directly from the zip, so the archive needs the exact layout the platform expects: host.json at the root, each function as a sibling folder with its own function.json and code file, without an extra parent folder around the project.

Open Kudu > Debug console > site/wwwroot and compare that structure with your local project, then create a new zip from the project root (the folder that contains host.json) and redeploy using func azure functionapp publish <functionappname> so Core Tools builds the right package and metadata.

While you test, also verify Configuration contains correct values like FUNCTIONS_WORKER_RUNTIME=node and a valid AzureWebJobsStorage connection string, because missing or wrong settings often lead to zero functions loaded even when deployment logs report success.

Zahan Khurram 0 Reputation points

2025-11-28T13:44:06.4+00:00

In Flex Consumption, KUDU Console is not accessible

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Functions does not show up in my Azure Function App

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