To which of the following rules must extensions in SAP S/4HANA, public cloud edition adhere?

Using released APIs is essential when creating extensions in the SAP S/4HANA public cloud edition. This ensures that your customizations and extensions are compliant with the predefined application interfaces provided by SAP. Released APIs are designed to maintain compatibility and performance as they integrate seamlessly with the existing functionalities of the SAP ecosystem. Adhering to these APIs helps developers avoid conflicts that could arise from unsupported modifications while ensuring updates and upgrades from SAP remain unimpeded.

The importance of this adherence also lies in the need for stability and reliability within the cloud environment. By using released APIs, developers can take advantage of SAP’s security protocols, performance optimizations, and ongoing support, which are critical in a cloud environment where changes to system architecture are managed carefully to provide consistent service.

In contrast, utilizing custom extension points or employing legacy development models may not align with the streamlined approach of the cloud edition, and employing legacy data formats would typically be counter to the benefits of adopting newer technologies and standards inherent in cloud applications. Therefore, selecting released APIs is the most suitable approach for ensuring sustainable and supportive development within the public cloud edition of SAP S/4HANA.