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Fix Power BI Costs query type mismatch on VCPUs/vCores cast #2305

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Fix Power BI Costs query type mismatch on VCPUs/vCores cast #2305

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fix(power-bi): coerce VCPUs/vCores to null on unparseable value in st…
flanakin Sep 8, 2026
e813c4e
chore: Update ms.date in docs-mslearn files
github-actions[bot] Sep 8, 2026
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4 changes: 3 additions & 1 deletion docs-mslearn/toolkit/changelog.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ title: FinOps toolkit changelog
description: Review the latest features and enhancements in the FinOps toolkit, including updates to FinOps hubs, Power BI reports, and more.
author: MSBrett
ms.author: brettwil
ms.date: 09/07/2026
ms.date: 09/08/2026
ms.topic: reference
ms.service: finops
ms.subservice: finops-toolkit
Expand Down Expand Up @@ -57,6 +57,8 @@ The following section lists features and enhancements that are currently in deve

- **Changed**
- Switched the InstanceSizeFlexibility table in the storage and KQL shared datasets from the retired `ccmstorageprod` AutofitComboMeterData.csv to the FinOps toolkit [Instance size flexibility](open-data.md#instance-size-flexibility) open data file, joined to reservation recommendations on the unique ARM SKU name ([#2090](https://github.com/microsoft/finops-toolkit/issues/2090)).
- **Fixed**
- Fixed the storage-based Costs query failing to refresh with `Type mismatch (DISP_E_TYPEMISMATCH 0x80020005)` when a row's SKU details didn't carry a clean numeric VCPUs/vCores value (for example, a Marketplace or reservation purchase row). The value is now coerced to null instead of throwing ([#2297](https://github.com/microsoft/finops-toolkit/issues/2297)).

### [Optimization Engine](optimization-engine/overview.md)

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5 changes: 3 additions & 2 deletions src/power-bi/storage/Shared.Dataset/definition/tables/Costs.tmdl
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Expand Up @@ -1683,14 +1683,15 @@ table Costs
// TODO: Add SQL AHB handling
AHB = Table.RemoveColumns(
Table.AddColumn(Table.AddColumn(Table.AddColumn(Table.AddColumn(Table.AddColumn(Table.AddColumn(Table.AddColumn(
Table.TransformColumnTypes(
Table.TransformColumns(
Table.ExpandRecordColumn(
Table.ReplaceErrorValues(Table.AddColumn(ExtractedTags, "tmp_SkuDetails", each [x_SkuDetailsDictionary]), {{"tmp_SkuDetails", null}}),
"tmp_SkuDetails",
{"UsageType", "ImageType", "ServiceType", "VMName", "VMProperties", "VCPUs", "ReservationOrderId", "ReservationId", "VMCapacityReservationId", "AHB", "vCores", "ServerSku"},
{"x_SkuUsageType", "x_SkuImageType", "x_SkuType", "tmp_VMName", "x_SkuVMProperties", "tmp_VMvCPUs", "tmp_AddlReservationOrderId", "tmp_AddlReservationId", "x_CapacityCommitmentId", "tmp_SQLAHB", "tmp_SQLvCores", "tmp_ServerSku"}
),
{{"tmp_VMvCPUs", Int64.Type}, {"tmp_SQLvCores", Int64.Type}}
// Coerce to Int64, degrading any non-numeric/unexpected VCPUs/vCores value (e.g. on a Marketplace, reservation, or other non-VM/SQL charge row) to null instead of throwing a type mismatch error on refresh
{{"tmp_VMvCPUs", each try Int64.From(_) otherwise null, Int64.Type}, {"tmp_SQLvCores", each try Int64.From(_) otherwise null, Int64.Type}}
),
"x_ResourceMachineName", each if _isNotBlank([tmp_VMName]) then [tmp_VMName] else null),
"x_SkuCoreCount", each if [tmp_VMvCPUs] <> null then [tmp_VMvCPUs] else if [tmp_SQLvCores] <> null then [tmp_SQLvCores] else null, Int64.Type),
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