# Data Gaps

> A dashboard item that lists every stretch in which a source delivered fewer minutes than expected, newest first, with its start, end and minutes missing.

Source: https://proxus.io/docs/analyze/dashboard-items/data-gaps

The **Data Gaps**  item lists every gap in the data, the newest first.
A gap is a run of periods in which a source delivered fewer minutes than expected. Use the list as the windows to
check, or to load again, in the systems the data feeds.

- **Header.** How many gaps the window has and how many minutes are missing in all.
- **Row.** The source, its group, when the gap started and ended (the start of its first period and the end of its
  last), and the minutes missing. A gap that reaches the latest period is marked **still open** and ends **now**.

Gaps shorter than the listed minimum are left out, and the list shows a set number of gaps; it says how many older
ones it does not show. Select a gap to filter the other items of the dashboard by its source.

## Data fields

**Source**, **Period**, **Minutes received** and **Minutes expected** are required: one row per source and period,
as for [Data Completeness](https://proxus.io/docs/analyze/dashboard-items/data-completeness). **Group** is shown with the time.

## Settings

- **Shortest gap listed (min)** leaves out the gaps with fewer missing minutes.
- **Gaps shown** is the length of the list.

## Where to see it

The Meridian demo plant uses it on **Meridian · Data Feed Command Center**.

## Related

- [Data Completeness](https://proxus.io/docs/analyze/dashboard-items/data-completeness)
- [Data Coverage](https://proxus.io/docs/analyze/dashboard-items/data-coverage)
- [Proxus dashboard items](https://proxus.io/docs/analyze/dashboard-items)