# How to Upload Sales Data

### Overview

Moselle uses your sales history to generate demand forecasts. For best results, upload sales data in **daily format**.

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### Upload Sales Data

1. Navigate to [**Data Room**](https://app.moselle.io/data-room)
2. Click **Upload Data**
3. Select **Sales**
4. Upload your file (CSV or Excel) — see File Requirements below for template format
5. Click **Upload**

> **Note:** Uploaded data can take up to 24 hours to propagate into the system.

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### Data Frequency

**Daily format is strongly recommended.**

Moselle's forecasting models expect a continuous daily time series. When you upload data in larger intervals (weekly, monthly, quarterly), Moselle upsamples it to daily format. This can reduce forecast accuracy because:

* The system distributes aggregated sales across individual days
* AI models may interpret the pattern differently than actual daily sales behavior
* Both top-down and bottom-up forecasts can be affected

**If daily data isn't available**, contact <support@moselle.io> before uploading. Our team can adjust your forecasting configuration to account for the data format.

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### File Requirements

* **Format:** CSV or Excel (.xlsx)
* **Required columns:** `sku`, `date`, `quantity`, `order_#`, `total_sales`

Ensure all column headers remain lowercase exactly as shown. SKUs must match your Moselle catalog for automatic linking.

#### Template

Copy the table below to start your upload file:

| sku     | date       | quantity | order\_# | total\_sales |
| ------- | ---------- | -------- | -------- | ------------ |
| ABC-001 | 2025-01-15 | 5        | 10234    | 125.00       |
| ABC-002 | 2025-01-15 | 2        | 10234    | 80.00        |
| ABC-001 | 2025-01-16 | 3        | 10235    | 75.00        |