wechatpay-medical-insurance-payment

To integrate WeChat Pay medical insurance mixed payment, create a mixed payment order, invoke JSAPI or mini program payment, verify callback signatures, and query order status using specific order_type and mix_pay_type field constraints.

Medical insurance payment callback signature verification fails when secure encryption handling is improperly configured or callback response time limits are exceeded. Use the skill's reference docs to verify decryption keys and enforce safe idempotency.

The mix_pay_type field constraint defines the payment form as pure medical insurance, pure self-pay, or mixed. Selecting the correct value enforces required field constraints and amount formulas for registration, clinic, inpatient, or pharmacy orders.

Troubleshoot medical insurance order creation failures by checking error codes, matching official error messages, and verifying amount formula validation. Follow the operational troubleshooting path to diagnose merchant or service-provider setup issues.

Yes, WeChat Pay JSAPI supports both pure self-pay and medical insurance mixed payment. Determine the correct order_type and mix_pay_type to ensure proper field linkage, amount validation, and order status transitions like MIX_PAY_CREATED or SUCCESS.

Use active order querying as a fallback when callbacks are delayed or missed. Enforce safe idempotency and implement active query fallbacks to ensure reliable order status synchronization for medical insurance mixed payments.