Store Reporting.

The report covers the previous day in the Europe/Warsaw time zone or the previous complete calendar month. It excludes canceled orders. It counts order value, orders, and units separately. Account registration is not treated as a first purchase.

JANE PL and CZ have separate sections. The mechanism also covers e-Fontanna, with further stores planned. The order language is mapped to the correct version, and section totals must agree with the whole. The amount is labeled according to the currency of the source data without pretending that an exchange-rate conversion took place.

Products are grouped by a stable identifier, including across translations. The number of line items and the number of units are separate pieces of information. Coupon analysis belongs to the monthly report: it shows the share of orders with a code and their final value, not an assumed discount amount.

Checks verify completeness, language, currency, and agreement between summaries. When an error remains unresolved, the report should not be sent as reliable. In the demonstration, you can introduce an intentional discrepancy and see the result being stopped.

The generator was prepared for scheduling and deployment on Cloud Run. Development also includes delivery tracking and retrying only failed attempts. “Accepted for sending,” “pending,” and “delivered” are different states; one server response is not enough to consider a report delivered.

I also developed the summaries for clear reading in email and on a phone. They should first answer the questions of period and store, and only then present details. The same model can generate a preview before sending so that the layout can be checked without passing data to recipients.