Improved
Account Check API - 'Account Name' validation rules
January 26th, 2026
To ensure more consistent request validation (and clearer error handling), we’ve updated the Account Check API input validation rules for the accountName field
Requests will now be rejected with HTTP 400 (Bad Request) when accountName is:
- a single character (e.g. "a")
- blank / whitespace-only (e.g. " ")
- includes leading or trailing spaces (e.g. " ddd ")
Where validation fails, the response includes a structured failure reason (including a failure code) to make it easier to identify the exact issue and handle errors predictably.
Refer to this file specification for further details: https://developer.azupay.com.au/reference/post_accountcheck