What each row means
One row per order. Status determines inclusion in the sales metric.
Fields, units and validation
Read data-dictionary.txt before calculations. Keep integer money in cents; quantities/counts are whole nonnegative values. Treat identifiers as labels. Preserve the original input and log transformations.
Known controls
8 source orders, 6 completed, 2 cancelled; completed sales EUR700. April 300, May 400; change 100 /33.3%. Store 370,Web 330; AOV116.67.
Reuse and attribution
Created by DataCareerHub; permission is granted to use and adapt these fictional fixtures for learning and portfolios with acknowledgement. They are not real clients, employers or commercial results. Do not replace them with confidential records.
Suggested independent extension
Create a second synthetic period with documented assumptions, predict the control totals and challenge your implementation. Clearly distinguish your invented extension from the original fixture.
Try the activity before reading its reference. Keep your sources, commands and assumptions with your work. Companion activities are unsaved self-practice and do not award a certificate or change lesson progress.