- Recommendation volatility / churn in the recommendation list
- Community posts report that recommendations can change significantly on short timescales and that counts can swing over brief periods.
- Some posts describe security-related recommendation counts fluctuating over short intervals.
- Refresh latency / staleness
- Community reports describe cases where recommendations did not update promptly after configuration changes (for example, VM resizing), with items still appearing despite remediation.
- Microsoft documentation notes it can take a short period for Advisor to recognize remediation; this helps explain some latency reports but does not fully account for reported longer staleness in some community threads.
- Missing/removed recommendations and UI issues
- Community threads report that certain reservation recommendations were missing from the UI; users suggested using the Azure REST API for reservation recommendations as a workaround in some cases.
- Depth/coverage criticisms
- Community discussion indicates Advisor may feel surface-level or delayed for deeper cost optimization tasks, especially for identifying unused or underutilized resources across multiple subscriptions.
- Reports about VM rightsizing note Advisor may not provide the depth of CPU/memory-based rightsizing insights that some teams expect, prompting use of Log Analytics, custom tooling, or other solutions.