Date Format Deserialization Error

usabilityActiveRising

The billing product list command fails due to an inability to deserialize date formats in the response data.

Opportunity Score (Heuristic (unvalidated)):66 · High · heuristic
First seen: 9/15/2026
Last seen: 10/17/2026

Score Breakdown

Heuristic ranking from public discussion signals — not a validated prediction of commercial opportunity, demand, or willingness to pay.

Composite 66/100 (High, unvalidated). Top driver: Severity (25% weight, 20 pts).

Frequency · 25% · 14.8 pts · XPS relevance59

Heuristic only — often urgency map or random scaffolding on ingest, not measured mention frequency. Maps to XPS relevance (with market size).

Severity · 25% · 20 pts · XPS quality80

LLM/mock judgment of intensity from title/summary text — not ops or ticket data. Maps to XPS quality (with willingness to pay).

Willingness to pay · 30% · 18 pts · XPS quality60

LLM/mock purchase-intent guess from text — not invoices, surveys, or paid seats. Maps to XPS quality.

Trend · 10% · 6.5 pts · XPS novelty65

Heuristic/scaffold (often random or fixed on insert) — not a verified mention trajectory. Maps to XPS novelty.

Market size · 10% · 7 pts · XPS relevance70

Heuristic/scaffold (often random or fixed) — not TAM research. Maps to XPS relevance (with frequency).

Catalog notes (not predictive analysis)

Date Format Deserialization Error (usability). Catalog heuristic opportunity score: 66/100 — a chosen formula over discussion-signal facets, not evidence of demand, conversion, or willingness to pay. Treat as browsing rank, not a commercial prediction.

The billing product list command fails due to an inability to deserialize date formats in the response data.

Source Examples

azure/azure-cli Issues·Sep 15, 2026
“Billing product list fails on date format returned <!--- 🛑 Please check existing issues first before continuing: https://github.com/Azure/azure-cli/issues ---> ### **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'))", Deserializat”
— teeyenng↗

Competitive Landscape

  • Existing solutions are either too expensive or too limited
  • Most competitors target enterprise, leaving mid-market underserved
  • Community scripts and manual processes are the primary alternative

Recommended Next Steps

  1. ✓Validate pain intensity with 5-10 target customer interviews
  2. ✓Build minimal viable solution addressing the core workflow
  3. ✓Test pricing with early adopters from community forums

Related Pain Points

Target Customers

  • IT teams at mid-size organizations (100-2000 employees)
  • MSPs and consultants managing multiple client environments
  • Teams without dedicated specialist staff for this domain

Monetization Ideas

  1. 1SaaS subscription model ($99-$499/month depending on scale)
  2. 2Usage-based pricing aligned with value delivered
  3. 3Freemium tier to drive adoption and prove value