---
id: cloud-accounts.s3-region-looks-invalid
url: https://storagestudio.us/faq/cloud-accounts/s3-region-looks-invalid
category: "Cloud accounts"
subcategory: "Amazon S3"
question: "Storage Studio says my S3 region looks invalid. What's wrong?"
alt_questions:
  - "This remote's region looks invalid"
  - "aps1-az1 is not a region"
  - "Availability Zone ID instead of region S3"
  - "Fix region button Storage Studio"
  - "S3 region error Storage Studio"
  - "Wrong AWS region in Storage Studio"
short_answer: "You probably entered an Availability Zone ID such as aps1-az1 instead of a region like ap-south-1. Storage Studio blocks the save and suggests the right region; for a saved account, use the banner's one-click fix or Edit the region."
tags: ["amazon s3", "region", "errors"]
related: ["https://storagestudio.us/faq/cloud-accounts/common-amazon-s3-setup-mistakes", "https://storagestudio.us/faq/cloud-accounts/how-do-i-edit-a-cloud-account"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Storage Studio says my S3 region looks invalid. What's wrong?

You've most likely entered an **Availability Zone ID** (like `aps1-az1` or `use1-az2`) in the **Region** field. That's a different identifier, so the connection fails. Regions look like `us-east-1`, `eu-west-3` or `ap-south-1`.

When you're adding the account, Storage Studio stops the save and tells you the parent region. For an account you already saved, its details show a banner with a one-click button to use the correct region and retest. You can also click **Edit** and type the region yourself — it's the region you chose when creating the bucket.