Developed the App Connection Mode for Minion-to-Master communications in the moysklad/java-remap-1.2-sdk repository, focusing on backend development using Java. This work involved extending the MinionToMasterType enum within the RetailStore integration to introduce an application-specific connection workflow, thereby expanding integration options for downstream applications. The implementation maintained backward compatibility and emphasized API stability, with explicit commit traceability to support future maintenance. No major bugs were addressed during this period, as the primary focus was on delivering this new feature and preparing for integration testing. The approach demonstrated skills in Java enum extension, API design, and collaborative development practices.