Problem Deleting Azure Functions Flex Consumption Always Ready Instance

[TaleLearnCode]

Describe the bug

When attempting to delete Always Ready instances from a Flex Consumption Function App using the Azure CLI, the deletion does not work when targeting the function setting name.

• Running the command with --setting-names http successfully removes the Always Ready configuration.
• Running the command with --setting-names function:<FunctionName> does not remove the Always Ready configuration.
• The CLI output suggests the configuration should be removed, but the alwaysReady list is not cleared.

As shown in the attached log output (with the Tenant IDs and Subscription IDs scrubbed), the PUT request sent to the app still contains the alwaysReady, which is probably preventing the deletion from being applied.

Related command

az functionapp scale config always-ready delete

Errors

No errors, but the Always Ready instance is not deleted.

Issue script & Debug output

delete-already-ready-output.txt

Expected behavior

Deleting Always Ready instances using --setting-names function:<FunctionName> should delete the Always Ready instance(s).

Environment Summary

azure-cli 2.77.0

core 2.77.0
telemetry 1.1.0

Dependencies:
msal 1.34.0b1
azure-mgmt-resource 23.3.0

Python location 'C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe'
Config directory 'C:\Users\chadg.azure'
Extensions directory 'C:\Users\chadg.azure\cliextensions'

Python (Windows) 3.13.7 (tags/v3.13.7:bcee1c3, Aug 14 2025, 14:15:11) [MSC v.1944 64 bit (AMD64)]

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[microsoft-github-policy-service]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @AnatoliB, @Francisco-Gamino, @shreyabatra4.