# Official sources

Use this reference only when you need source grounding for Alibaba Cloud serverless service behavior or the detailed source list.

## Alibaba Cloud documentation

Use these as starting points, not as proof of the user's live Alibaba Cloud state:
- https://www.alibabacloud.com/help/en/functioncompute/latest/overview
- https://www.alibabacloud.com/help/en/functioncompute/latest/provisioned-instances
- https://www.alibabacloud.com/help/en/functioncompute/latest/configure-vpc-settings
- https://www.alibabacloud.com/help/en/sae/latest/what-is-sae
- https://www.alibabacloud.com/help/en/sae/latest/configure-resource-quotas
- https://www.alibabacloud.com/help/en/arms/latest/what-is-arms
- https://www.alibabacloud.com/help/en/ram/latest/overview-1

## Grounding rule

Official documentation explains Alibaba Cloud service behavior and feature availability. It does not prove the user's current function configuration, VPC binding status, RAM role assignment, or ARMS tracing state. Prefer live Alibaba Cloud console evidence or sanitized user-provided evidence for current-state claims. FC3 and FC2 differ fundamentally in their invocation model — always confirm version before giving recommendations.
