October 2025 monthly summary: Delivered the Tax Invoice Preview Endpoint for the Ecwid Java API Client. Added a new API endpoint, a dedicated request object, and an API client method to generate and preview tax invoices within the system. This enables real-time tax invoice previews, reducing manual steps and improving accuracy in invoicing workflows. No major bugs fixed this month. Demonstrated Java API client design, RESTful API patterns, and clear commit traceability for ECWID-174260.

March 2025 monthly summary for Ecwid Java API client development. Key feature delivered: added delivery time slot duration support for order scheduling by introducing a new field timeSlotLengthInMinutes in FetchedOrder. The field is registered as nullable and non-updatable in test rule files to preserve data integrity. This work aligns with ECWID-159429 OE2 and was implemented in the Ecwid/ecwid-java-api-client repository (commit 62cd39129557690f9eba9bb3af4ee1c61dd79cf3). Bugs fixed: No major bugs reported or fixed in this period. Overall impact and accomplishments: Enables precise delivery scheduling with configurable time slot durations, improving delivery planning accuracy, merchant flexibility, and customer satisfaction. The change supports better analytics on delivery windows and capacity planning, contributing to reduced delivery conflicts and improved on-time performance. Technologies/skills demonstrated: Java data model extension (FetchedOrder), API client design, test rule configuration for nullable/non-updatable fields, version control and traceability with a linked commit, and ECWID-159429 OE2 tracking.