Update Your Code for New API Error Handling

Executive summary:

• API version 2026-04 hides old error fields.
• Introduces new processingError fields.
• Action required for developers using deprecated fields.

What changed

The API version 2026-04 has hidden the errorCode and errorMessage fields on SubscriptionBillingAttempt. These were deprecated in an earlier API version and replaced by processingError.code and processingError.message. Developers must update their integrations to use the new fields to maintain functionality.

Why it matters

This change ensures that error handling is consistent and robust across the Shopify platform. By moving to a single structure for error reporting, developers can manage error conditions more effectively.

Role-specific impact

• Marketers: Ensure campaign tracking is integrated into updated systems.
• Developers: Refactor code to align with the updated API fields for error handling.
• Store admins: Coordinate with technical teams to ensure uninterrupted service.

Use-case example

Real-world scenario & metric

A merchant updates their app to the new API version and experiences a 20% reduction in failed billing attempts due to improved error diagnostics, enhancing revenue consistency.

Implementation checklist

1. Identify areas in your code using deprecated fields.
2. Refactor your code to use processingError.code and processingError.message.
3. Test thoroughly to ensure compatibility with version 2026-04.
4. Deploy and monitor for issues.

FAQ

Q: What happens if I don't update my code?
A: Your application may face compatibility issues and fail to correctly process billing attempts.

Q: How can I check if my code is using deprecated fields?
A: Review your Shopify API integration code, looking for errorCode or errorMessage.

Resources

Read the API documentation for further guidance on updating your Shopify integrations.

Need guidance? Talk to Makro.