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What-If on API Management instance shows false positives on oAuth2AuthenticationSettings

Status: Open.

#440 In Azure/arm-template-whatif;

· James Apple (jja262) opened on Sep 2, 2026

What-if falsely reports subnets + peerings will be deleted if they aren't present in Bicep file

Needs: Triage 🔍

Status: Open.

#439 In Azure/arm-template-whatif;

· PeterRoberts-Zure opened on Sep 2, 2026

What-If deployment poor performance at scale

Status: Open.

#436 In Azure/arm-template-whatif;

· harken350 opened on Jun 29, 2026

Regression: what-if fails when accessing ARM‑injected read‑only properties (id) on multiple resource types — works in validate & create

Needs: Triage 🔍

Status: Open.

#435 In Azure/arm-template-whatif;

· mendo96 opened on Apr 21, 2026

az deployment sub what-if never completes when nested Microsoft.Resources/deployments contains a Cosmos DB container copy loop

Status: Open.

#434 In Azure/arm-template-whatif;

· Jeevanandham Poongavanam (jeevanions) opened on Apr 17, 2026

WhatIf ignores conditional deployment check

Needs: Triage 🔍

Status: Open.

#433 In Azure/arm-template-whatif;

· jocoyo opened on Apr 9, 2026

Bicep what-if changes are not accurate for Microsoft.SignalR/signalR resources on multiple API versions

Needs: Triage 🔍

Status: Open.

#430 In Azure/arm-template-whatif;

· Gavin Chappell (gchappel) opened on Feb 25, 2026

az deployment group validate and what-if do not detect deployment failures caused by redundant/duplicate app settings in App Service

provider bugIssue exists in the resource providerIssue exists in the resource provider

Web/sites

Status: Open.

#428 In Azure/arm-template-whatif;

· Arthusmeng opened on Dec 15, 2025

Multiple Event Grid system topics on the same source not allowed but not caught by WhatIf

EventGrid/systemTopics

provider bugIssue exists in the resource providerIssue exists in the resource provider

Status: Open.

#424 In Azure/arm-template-whatif;

· felixtsem5 opened on Nov 12, 2025

Deadlock deploying bicep whatif postgre-sql

Status: Open.

#415 In Azure/arm-template-whatif;

· Gérald Döserich (TheToor) opened on Sep 2, 2025

Whatif does not validate deployment name

Status: Open.

#414 In Azure/arm-template-whatif;

· Olav Rønnestad Birkeland (o-l-a-v) opened on Aug 22, 2025

accessPolicies replace is claiming it will replace all access policie

Status: Open.

#411 In Azure/arm-template-whatif;

· Carlin Scott (carlin-q-scott) opened on Aug 12, 2025