Unsupported region

What it means

The `region` field must be one of `AU`, `BR`, or `CA`. Anything else returns this error.

Common causes

• •Sent `US`, `UK`, `EU`, `NZ` — none are supported in v1.
• •Lower-case or alternative spelling that didn't match.

How to fix

1. 1.Use exactly `AU`, `BR`, or `CA` (uppercase; lowercase is normalised but anything outside this set fails).
2. 2.Omit `region` entirely to default to AU.

Example

// Valid
{ "ingredient": "vitamin C", "region": "AU" }
{ "ingredient": "vitamin C", "region": "BR" }
{ "ingredient": "vitamin C", "region": "CA" }