[Open Data] Update commitment discount eligibility (October 2026)

[Roland Krummenacher (RolandKrummenacher)]

Summary

Automated update of commitment discount eligibility data from the Azure Retail Prices API, produced by the Update Commitment Discount Eligibility workflow (run 38214571289).

Net +6,322 meters (92,893 → 99,215), composed of:

Change	Count
Meters added	6,433
Meters removed	111
Eligibility changed on retained meters	24
Retained unchanged	92,758

Resulting distribution:

Spend / Usage eligibility	dev	This PR
Eligible / Eligible	56,392	61,990
Eligible / Not Eligible	26,735	27,177
Not Eligible / Eligible	9,766	10,048

Both fetch passes returned identical meter sets (0% drift) for reservations (72,038) and savings plans (89,167), and the historical guards passed.

Why the jump is so large

Almost all of the growth arrived in a single week: the 21 and 28 September runs saw 92,877 and 92,905 meters, the 5 October run saw 99,116. A random sample of 60 added meters, looked up against the live API, all exist and all have an earliest effectiveStartDate of 2026-10-01 — an Azure price list update, not a fetch artifact. 51 of the 60 are Virtual Machines, mainly:

• New VM series: Dpsv7, Dpdsv7, Dpldsv7, Dplsv7, Epsv7, Epdsv7, Mpsv4/Mpdsv4, Lpsv5, Falsv6, NCdsxl RTX 6000 v6
• New regions: taiwannorth, taiwannorthwest, southeastasia3 (19 of the 60), which also adds meters for existing series such as Easv4 and ESv3

The rest are spread across MySQL, PostgreSQL, Cosmos DB, SQL Database, SQL Managed Instance, and App Service.

Non-additive rows, verified against the live API

Checked with api-version=2023-01-01-preview and meterRegion='primary', the same parameters the fetch script uses.

• 24 eligibility changes: all are Eligible / Not Eligible → Eligible / Eligible, and all 24 are Virtual Machines HBrsv5 Linux meters. The live API now returns savings plan pricing (1Y, 3Y) alongside reservations (1Y, 3Y, 5Y), so dev is stale.
• 111 removals (105 Eligible / Not Eligible, 6 Not Eligible / Eligible): a sample of 15 returns no items from the live API. These are retired meters, dropped by design so they age out instead of accumulating.

Notes

The Open Data CI added a commit that regenerates src/powershell/Private/Get-OpenDataCommitmentDiscountEligibility.ps1 from the updated CSV, so the PowerShell lookup stays in sync with the data.

This PR is opened from the 12 October branch. The 21 September, 28 September, and 5 October branches are snapshots that this one supersedes (each run is a full fetch) and have been deleted. GitHub Actions can't open PRs in this org, which is why those weeks never got a PR.

Test plan

• Open Data CI passes
• Review the diff for unexpected changes (large drops in meter count, etc.)
• Spot-check new, changed, and removed meter IDs against the live Retail Prices API

🤖 Generated with Claude Code

[Copilot]

🟢 Approval recommended

Generated outputs are internally consistent; only a nonblocking summary-count correction remains.

1 open finding

• Correct retained meter total in PR summary · New

What changed in this PR

Updates commitment discount eligibility data from the Azure Retail Prices API.

Changes:

• Updates eligibility for 99,215 meters.
• Regenerates the PowerShell lookup.
• Refreshes per-family completeness baselines.

File	Description
src/​open-data/​CommitmentDiscountEligibility.csv	Updates meter eligibility data.
src/​open-data/​CommitmentDiscountEligibility.familycounts.json	Refreshes family-level baseline counts.
src/​powershell/​Private/​Get-OpenDataCommitmentDiscountEligibility.ps1	Mirrors the updated CSV data in PowerShell.

🧠 Review effort: Balanced

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