Source: Search Engine Roundtable by barry@rustybrick.com (Barry Schwartz). Read the original article
TL;DR Summary of Microsoft Advertising’s Transition from SOAP to REST API
Microsoft Advertising is retiring its SOAP API by January 31, 2027, shifting fully to the REST API as its future standard. New features and enhancements will be available only via REST starting October 1, 2026, giving users a 6-month transition period. Existing SOAP integrations will continue to function without interruption until the final retirement date. This move aims to standardize API development for improved performance and innovation.
Optimixed’s Overview: Embracing REST API for Enhanced Microsoft Advertising Integration
Key Changes in Microsoft Advertising API Strategy
Microsoft Advertising is officially phasing out its legacy SOAP API to focus on the more modern REST API framework. This strategic transition is set to complete by January 31, 2027, marking a significant shift towards streamlined and efficient API interactions.
Important Dates to Note
- October 1, 2026: All new features and enhancements will be exclusively available on the REST API.
- January 31, 2027: Complete retirement and deprecation of the SOAP API.
What This Means for Users and Developers
- Transition Period: Users have 6 months from October 2026 to migrate their integrations to REST API, ensuring uninterrupted access to new capabilities.
- Legacy Support: Existing SOAP-based integrations will continue to operate without immediate disruption until the retirement date.
- Future-Ready Development: The REST API standardization paves the way for enhanced performance, scalability, and ongoing innovation within Microsoft Advertising’s ecosystem.
Next Steps
Developers and partners are encouraged to begin transitioning their API integrations to REST as soon as possible to take advantage of new features and maintain full compatibility. Microsoft Advertising provides support resources to assist with this migration.
