Updating functionapp slot master key results in 'Operation returned an invalid status 'Not Found'' #31826
Description
Describe the bug
changing the master key of a functionapp slot results in 'Operation returned an invalid status 'Not Found''
Related command
az functionapp keys set -g -n --slot --key-type masterKey --key-name default --key-value ${masterKey}
Errors
Operation returned an invalid status 'Not Found'
Issue script & Debug output
$ az functionapp keys set -g -n --slot --key-type masterKey --key-name default --key-value ${masterKey} --debug
cli.knack.cli: Command arguments: ['functionapp', 'keys', 'set', '-g', '', '-n', '', '--slot', '', '--key-type', 'masterKey', '--key-name', 'default', '--key-value', '', '--debug']
cli.knack.cli: init debug log:
Enable color in terminal.
Enable VT mode.
cli.knack.cli: Event: Cli.PreExecute []
cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [<function CLILogging.on_global_arguments at 0x01C42C08>, <function OutputProducer.on_global_arguments at 0x01D847F8>, <function CLIQuery.on_global_arguments at 0x01DA32F8>]
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate []
cli.azure.cli.core: Modules found from index for 'functionapp': ['azure.cli.command_modules.appservice', 'azure.cli.command_modules.serviceconnector']
cli.azure.cli.core: Loading command modules:
cli.azure.cli.core: Name Load Time Groups Commands
cli.azure.cli.core: appservice 1.619 80 277
cli.azure.cli.core: serviceconnector 0.352 20 331
cli.azure.cli.core: Total (2) 1.971 100 608
cli.azure.cli.core: These extensions are not installed and will be skipped: ['azext_ai_examples', 'azext_next']
cli.azure.cli.core: Loading extensions:
cli.azure.cli.core: Name Load Time Groups Commands Directory
cli.azure.cli.core: Total (0) 0.000 0 0
cli.azure.cli.core: Loaded 98 groups, 608 commands.
cli.azure.cli.core: Found a match in the command table.
cli.azure.cli.core: Raw command : functionapp keys set
cli.azure.cli.core: Command table: functionapp keys set
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [<function AzCliLogging.init_command_file_logging at 0x03D01028>]
cli.azure.cli.core.azlogging: metadata file logging enabled - writing logs to '.azure\commands\2025-07-16.14-24-07.functionapp_keys_set.122908.log'.
az_command_data_logger: command args: functionapp keys set -g {} -n {} --slot {} --key-type {} --key-name {} --key-value {} --debug
cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [<function register_global_subscription_argument..add_subscription_parameter at 0x03D1BBB8>]
D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\cryptography/hazmat/backends/openssl/backend.py:8: UserWarning: You are using cryptography on a 32-bit Python on a 64-bit Windows Operating System. Cryptography will be significantly faster if you switch to using a 64-bit Python.
cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad []
cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [<function register_ids_argument..add_ids_arguments at 0x03D360C8>, <function register_cache_arguments..add_cache_arguments at 0x04704848>, <function register_upcoming_breaking_change_info..update_breaking_change_info at 0x04704898>]
cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded []
cli.knack.cli: Event: CommandInvoker.OnPreParseArgs []
cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [<function OutputProducer.handle_output_argument at 0x01D84848>, <function CLIQuery.handle_query_parameter at 0x01DA3348>, <function register_ids_argument..parse_ids_arguments at 0x047047F8>]
cli.azure.cli.core.commands.client_factory: Getting management service client client_type=WebSiteManagementClient
cli.azure.cli.core.auth.persistence: build_persistence: location='v\.azure\msal_token_cache.bin', encrypt=True
cli.azure.cli.core.auth.binary_cache: load: .azure\msal_http_cache.bin
urllib3.util.retry: Converted retries value: 1 -> Retry(total=1, connect=None, read=None, redirect=None, status=None)
msal.authority: Initializing with Entra authority: https://login.microsoftonline.com/
msal.authority: openid_config("https://login.microsoftonline.com/***********/v2.0/.well-known/openid-configuration") = {'token_endpoint': 'https://login.microsoftonline.com/************/oauth2/v2.0/token', 'token_endpoint_auth_methods_supported': ['client_secret_post', 'private_key_jwt', 'client_secret_basic'], 'jwks_uri': 'https://login.microsoftonline.com/***************/discovery/v2.0/keys', 'response_modes_supported': ['query', 'fragment', 'form_post'], 'subject_types_supported': ['pairwise'], 'id_token_signing_alg_values_supported': ['RS256'], 'response_types_supported': ['code', 'id_token', 'code id_token', 'id_token token'], 'scopes_supported': ['openid', 'profile', 'email', 'offline_access'], 'issuer': 'https://login.microsoftonline.com/*******************/v2.0', 'request_uri_parameter_supported': False, 'userinfo_endpoint': 'https://graph.microsoft.com/oidc/userinfo', 'authorization_endpoint': 'https://login.microsoftonline.com/************/oauth2/v2.0/authorize', 'device_authorization_endpoint': 'https://login.microsoftonline.com/*************/oauth2/v2.0/devicecode', 'http_logout_supported': True, 'frontchannel_logout_supported': True, 'end_session_endpoint': 'https://login.microsoftonline.com/*****************/oauth2/v2.0/logout', 'claims_supported': ['sub', 'iss', 'cloud_instance_name', 'cloud_instance_host_name', 'cloud_graph_host_name', 'msgraph_host', 'aud', 'exp', 'iat', 'auth_time', 'acr', 'nonce', 'preferred_username', 'name', 'tid', 'ver', 'at_hash', 'c_hash', 'email'], 'kerberos_endpoint': 'https://login.microsoftonline.com/*************/kerberos', 'tenant_region_scope': 'EU', 'cloud_instance_name': 'microsoftonline.com', 'cloud_graph_host_name': 'graph.windows.net', 'msgraph_host': 'graph.microsoft.com', 'rbac_url': 'https://pas.windows.net'}
msal.application: Broker enabled? True
cli.azure.cli.core.auth.credential_adaptor: CredentialAdaptor.get_token_info: scopes=('https://management.core.windows.net//.default',), options={}
cli.azure.cli.core.auth.msal_credentials: UserCredential.acquire_token: scopes=['https://management.core.windows.net//.default'], claims_challenge=None, kwargs={}
msal.application: Cache hit an AT
msal.telemetry: Generate or reuse correlation_id: **************
cli.azure.cli.core.sdk.policies: Request URL: 'https://management.azure.com/subscriptions/**********/resourceGroups/**********/providers/Microsoft.Web/sites/******/slots/*******/host/default/masterKey/default?api-version=2023-01-01'
cli.azure.cli.core.sdk.policies: Request method: 'PUT'
cli.azure.cli.core.sdk.policies: Request headers:
cli.azure.cli.core.sdk.policies: 'Content-Type': 'application/json'
cli.azure.cli.core.sdk.policies: 'Content-Length': '104'
cli.azure.cli.core.sdk.policies: 'Accept': 'application/json'
cli.azure.cli.core.sdk.policies: 'x-ms-client-request-id': ''
cli.azure.cli.core.sdk.policies: 'CommandName': 'functionapp keys set'
cli.azure.cli.core.sdk.policies: 'ParameterSetName': '-g -n --slot --key-type --key-name --key-value --debug'
cli.azure.cli.core.sdk.policies: 'User-Agent': 'AZURECLI/2.75.0 (MSI) azsdk-python-core/1.31.0 Python/3.12.10 (Windows-11-10.0.26100-SP0)'
cli.azure.cli.core.sdk.policies: 'Authorization': ''
cli.azure.cli.core.sdk.policies: Request body:
cli.azure.cli.core.sdk.policies: {"properties": {"name": "default", "value": "*"}}
urllib3.connectionpool: Starting new HTTPS connection (1): management.azure.com:443
urllib3.connectionpool: https://management.azure.com:443 "PUT /subscriptions//resourceGroups//providers/Microsoft.Web/sites//slots//host/default/masterKey/default?api-version=2023-01-01 HTTP/1.1" 404 0
cli.azure.cli.core.sdk.policies: Response status: 404
cli.azure.cli.core.sdk.policies: Response headers:
cli.azure.cli.core.sdk.policies: 'Cache-Control': 'no-cache'
cli.azure.cli.core.sdk.policies: 'Pragma': 'no-cache'
cli.azure.cli.core.sdk.policies: 'Expires': '-1'
cli.azure.cli.core.sdk.policies: 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains'
cli.azure.cli.core.sdk.policies: 'X-Powered-By': 'ASP.NET'
cli.azure.cli.core.sdk.policies: 'x-ms-operation-identifier': 'tenantId=,objectId=/westeurope/'
cli.azure.cli.core.sdk.policies: 'x-ms-ratelimit-remaining-subscription-writes': '199'
cli.azure.cli.core.sdk.policies: 'x-ms-ratelimit-remaining-subscription-global-writes': '2999'
cli.azure.cli.core.sdk.policies: 'x-ms-request-id': '******'
cli.azure.cli.core.sdk.policies: 'x-ms-correlation-request-id': ''
cli.azure.cli.core.sdk.policies: 'x-ms-routing-request-id': 'WESTEUROPE:20250716T122409Z:'
cli.azure.cli.core.sdk.policies: 'X-Content-Type-Options': 'nosniff'
cli.azure.cli.core.sdk.policies: 'X-Cache': 'CONFIG_NOCACHE'
cli.azure.cli.core.sdk.policies: 'X-MSEdge-Ref': 'Ref A: ****************** Ref B: AMS231022012045 Ref C: 2025-07-16T12:24:09Z'
cli.azure.cli.core.sdk.policies: 'Date': 'Wed, 16 Jul 2025 12:24:09 GMT'
cli.azure.cli.core.sdk.policies: 'Content-Length': '0'
cli.azure.cli.core.sdk.policies: Response content:
cli.azure.cli.core.sdk.policies:
cli.azure.cli.core.azclierror: Traceback (most recent call last):
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/cli.py", line 233, in invoke
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 666, in execute
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 734, in _run_jobs_serially
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 703, in _run_job
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 336, in call
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 120, in handler
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/command_modules/appservice/custom.py", line 7952, in update_host_key
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/core/tracing/decorator.py", line 94, in wrapper_use_tracer
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/mgmt/web/v2023_01_01/operations/_web_apps_operations.py", line 41046, in create_or_update_host_secret_slot
File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/core/exceptions.py", line 161, in map_error
azure.core.exceptions.ResourceNotFoundError: Operation returned an invalid status 'Not Found'
cli.azure.cli.core.azclierror: Operation returned an invalid status 'Not Found'
az_command_data_logger: Operation returned an invalid status 'Not Found'
cli.knack.cli: Event: Cli.PostExecute [<function AzCliLogging.deinit_cmd_metadata_logging at 0x03D01168>]
az_command_data_logger: exit code: 3
cli.main: Command ran in 5.880 seconds (init: 1.244, invoke: 4.636)
telemetry.main: Begin splitting cli events and extra events, total events: 1
telemetry.client: Accumulated 0 events. Flush the clients.
telemetry.main: Finish splitting cli events and extra events, cli events: 1
telemetry.save: Save telemetry record of length 3884 in cache file under C:\Users*.azure\telemetry\20250716142410164
telemetry.main: Begin creating telemetry upload process.
telemetry.process: Creating upload process: "C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\python.exe C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\azure\cli\telemetry_init_.pyc C:\Users*****.azure C:\Users*.azure\telemetry\20250716142410164"
telemetry.process: Return from creating process 6968
telemetry.main: Finish creating telemetry upload process.
Expected behavior
no error and key updated
Environment Summary
$ az --version
azure-cli 2.75.0
core 2.75.0
telemetry 1.1.0
Extensions:
application-insights 1.2.3
bastion 0.2.5
front-door 1.0.17
ssh 2.0.1
Dependencies:
msal 1.33.0b1
azure-mgmt-resource 23.3.0
Python location 'C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\python.exe'
Config directory 'C:\Users*.azure'
Extensions directory 'C:\Users*.azure\cliextensions'
Python (Windows) 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 11:58:42) [MSC v.1943 32 bit (Intel)]
Legal docs and information: aka.ms/AzureCliLegal
Your CLI is up-to-date.
Additional context
No response