Billing product list fails on date format returned

Reproduce the failure with az billing product list using the account and profile arguments shown, then inspect the deserialization path in azure/mgmt/billing/operations/_products_operations.py and the msrest ISO datetime handling named in the traceback. Done means the command accepts the returned slash-formatted purchase and end dates and lists the products without a deserialization error.

This is autogenerated. Please review and update as needed.

Describe the bug

Command Name
az billing product list

Errors:

PS /home/USER> az billing product list --account-name "ACCOUNT_NAME" --profile-name "PROFILE_NAME"
Command group 'billing product' is in preview and under development. Reference and support levels: https://aka.ms/CLI_refstatus
The command failed with an unexpected error. Here is the traceback:
('Unable to deserialize response data. Data: [{\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_1\', \'name\': \'PRODUCT_1\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'10/01/2026\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'12/02/2024\', \'quantity\': REDACTED, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}, {\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_2\', \'name\': \'PRODUCT_2\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingFrequency\': \'P1M\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'06/12/2027\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'09/17/2025\', \'quantity\': 999, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}, {\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_3\', \'name\': \'PRODUCT_3\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'10/12/2026\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'10/13/2025\', \'quantity\': 2, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}], [Product], DeserializationError: ("Unable to deserialize response data. Data: 12/02/2024, iso-8601, DeserializationError: (\'Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024\', ValueError(\'Invalid datetime string: 12/02/2024\'))", DeserializationError(\'Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024\', ValueError(\'Invalid datetime string: 12/02/2024\')))', DeserializationError("Unable to deserialize response data. Data: 12/02/2024, iso-8601, DeserializationError: ('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))", DeserializationError('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))))
Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1954, in deserialize_iso
    raise ValueError("Invalid datetime string: " + attr)
ValueError: Invalid datetime string: 12/02/2024

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1621, in deserialize_data
    data_val = self.deserialize_type[data_type](data)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1973, in deserialize_iso
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1954, in deserialize_iso
    raise ValueError("Invalid datetime string: " + attr)
azure.core.exceptions.DeserializationError: ('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1626, in deserialize_data
    return self.deserialize_type[iter_type](data, data_type[1:-1])
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1657, in deserialize_iter
    return [self.deserialize_data(a, iter_type) for a in attr]
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1639, in deserialize_data
    return self._deserialize(obj_type, data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1450, in _deserialize
    value = self.deserialize_data(raw_value, attr_desc['type'])
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1637, in deserialize_data
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1621, in deserialize_data
    data_val = self.deserialize_type[data_type](data)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1973, in deserialize_iso
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1954, in deserialize_iso
    raise ValueError("Invalid datetime string: " + attr)
azure.core.exceptions.DeserializationError: ("Unable to deserialize response data. Data: 12/02/2024, iso-8601, DeserializationError: ('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))", DeserializationError('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.12/site-packages/knack/cli.py", line 233, in invoke
    cmd_result = self.invocation.execute(args)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/cli/core/commands/__init__.py", line 677, in execute
    raise ex
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/cli/core/commands/__init__.py", line 820, in _run_jobs_serially
    results.append(self._run_job(expanded_arg, cmd_copy))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/cli/core/commands/__init__.py", line 802, in _run_job
    result = list(result)
             ^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/core/paging.py", line 136, in __next__
    return next(self._page_iterator)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/core/paging.py", line 90, in __next__
    self.continuation_token, self._current_page = self._extract_data(self._response)
                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/azure/mgmt/billing/operations/_products_operations.py", line 265, in extract_data
    deserialized = self._deserialize('ProductsListResult', pipeline_response)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1376, in __call__
    return self._deserialize(target_obj, data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1450, in _deserialize
    value = self.deserialize_data(raw_value, attr_desc['type'])
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1637, in deserialize_data
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1626, in deserialize_data
    return self.deserialize_type[iter_type](data, data_type[1:-1])
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1657, in deserialize_iter
    return [self.deserialize_data(a, iter_type) for a in attr]
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1639, in deserialize_data
    return self._deserialize(obj_type, data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1450, in _deserialize
    value = self.deserialize_data(raw_value, attr_desc['type'])
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1637, in deserialize_data
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1621, in deserialize_data
    data_val = self.deserialize_type[data_type](data)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1973, in deserialize_iso
    raise_with_traceback(DeserializationError, msg, err)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/exceptions.py", line 51, in raise_with_traceback
    raise error.with_traceback(exc_traceback)
  File "/usr/lib64/az/lib/python3.12/site-packages/msrest/serialization.py", line 1954, in deserialize_iso
    raise ValueError("Invalid datetime string: " + attr)
azure.core.exceptions.DeserializationError: ('Unable to deserialize response data. Data: [{\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_1\', \'name\': \'PRODUCT_1\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'10/01/2026\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'12/02/2024\', \'quantity\': 3, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}, {\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_2\', \'name\': \'PRODUCT_2\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingFrequency\': \'P1M\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'06/12/2027\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'09/17/2025\', \'quantity\': 7, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}, {\'id\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/products/PRODUCT_3\', \'name\': \'PRODUCT_3\', \'properties\': {\'autoRenew\': \'On\', \'availabilityId\': \'REDACTED\', \'billingProfileId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME\', \'billingProfileDisplayName\': \'Direct\', \'endDate\': \'10/12/2026\', \'invoiceSectionId\': \'/providers/Microsoft.Billing/billingAccounts/ACCOUNT_NAME/billingProfiles/PROFILE_NAME/invoiceSections/INVOICE_SECTION\', \'invoiceSectionDisplayName\': \'DISPLAY_NAME\', \'productType\': \'PRODUCTPRODUCT\', \'productTypeId\': \'REDACTED\', \'skuId\': \'0001\', \'skuDescription\': \'PRODUCTPRODUCT\', \'purchaseDate\': \'10/13/2025\', \'quantity\': 2, \'status\': \'AutoRenew\', \'tenantId\': \'TENANT_ID\'}, \'type\': \'Microsoft.Billing/billingAccounts/products\'}], [Product], DeserializationError: ("Unable to deserialize response data. Data: 12/02/2024, iso-8601, DeserializationError: (\'Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024\', ValueError(\'Invalid datetime string: 12/02/2024\'))", DeserializationError(\'Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024\', ValueError(\'Invalid datetime string: 12/02/2024\')))', DeserializationError("Unable to deserialize response data. Data: 12/02/2024, iso-8601, DeserializationError: ('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))", DeserializationError('Cannot deserialize datetime object., ValueError: Invalid datetime string: 12/02/2024', ValueError('Invalid datetime string: 12/02/2024'))))
To check existing issues, please visit: https://github.com/Azure/azure-cli/issues

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

• az billing product list --account-name {} --profile-name {}

Expected Behavior

List all the products under the billing account and profile

Environment Summary

Linux-6.1.158.2-microsoft-standard-x86_64-with-glibc2.38 (Cloud Shell), Microsoft Azure Linux 3.0
Python 3.12.14
Installer: RPM

azure-cli 2.90.0

Extensions:
ml 2.44.1
ssh 2.0.9

Dependencies:
msal 1.36.0
azure-mgmt-resource 24.0.0

Additional Context