Endpoint
POST /v3/qr_code/generate/dynamic
Authentication and target
Use an account credential for its bound account, or a user credential with bothX-ISPB and X-Account-Number. If an account credential sends those headers, both must be present and must match its bound account. Platform credentials are not accepted. All requests require the standard HMAC-SHA256 headers. This path also enforces the applicable active-user and PAYIN scene checks.
The curl example below uses an ACCOUNT credential bound to the operated account, so it omits X-ISPB and X-Account-Number. If X-Client-ID identifies a USER credential, add both target headers and include their exact trimmed values in the canonical header set before calculating X-Signature.
Request body
Success data
payload_base64, qr_code_id, and merchant_order_id.
Behavior and validation
Payer data may be omitted, but a partial payer pair is rejected. Creation is synchronous from this API’s perspective. The only implementation-backed expiry behavior is the submittedexpires value or its 7200-second default.
Errors
Every call can fail for missing or invalid signature headers, an expired timestamp, nonce replay, an invalid body hash or signature, insufficient permission, or a downstream service error. Endpoint-specific errors include:- Business code
4000for a missing merchant order or incomplete payer pair. 4002for an invalid amount or payer-document length.- Current business code
500for a missingpix_key. 4003008when account context is unavailable, plus mapped downstream validation/processing errors.