I need a fully synthetic retail sales dataset for testing a demand...

Request

I need a fully synthetic retail sales dataset for testing a demand forecasting demo. Please provide 12 months of fictional daily sales across 10 fictional stores and 50 fictional products, with date, store ID, product ID, units sold, unit price, and promotion flag. CSV is preferred. All records must be artificially generated, contain no real people or business records, and be licensed for demo use. Please explain the generation method and any limitations.