Chart & Visualization Issues

Understanding and Formatting a Red Transition Point in an Excel Chart

Camila Milosovich Sep 27, 2026 869 views

Question details

The user needs to understand the meaning of a red transition point in an Excel chart and how to properly configure it to connect different data series.

What Does a Red Transition Point Mean in an Excel Chart?

Product: Excel
Device & OS: not provided
Scenario: Visualizing data where one series ends and another begins, requiring a visual connector.
Observed behavior: A red point indicates a transition between data series or a continuation where a connecting line should bridge two distinct datasets.

Before you start

Ensure your dataset is organized continuously in your spreadsheet so that connecting lines and transition points can be plotted accurately without unintended gaps.

Solution 1Recommended

Format the Transition Point to Connect Data Series

Manually add and format the transition point as a shared data point to ensure your chart lines connect smoothly between two datasets.

A red transition point typically acts as a visual bridge between historical data and projected data, or two different categories. By configuring the series ranges correctly, you can make the chart appear cohesive.

Add a Shared Data Point

In your source data table, ensure the ending value of the first series is duplicated as the starting value of the second series. This creates the shared transition point.

Select the Specific Point

Click on the chart line to select the series, then click again directly on the transition point to select it individually.

Format the Data Point

Right-click the isolated point and select 'Format Data Point' from the context menu to open the formatting pane.

Change Marker Color

Navigate to the 'Fill & Line' settings (the paint bucket icon), click 'Marker', and change the fill color to red to highlight the transition visually.

Verify Line Connections

Check your chart's line settings to ensure the datasets are connected by a solid or dashed line, seamlessly passing through your new red transition point.

Format the Transition Point to Connect Data Series

Seamless Connection: Duplicating the data point across both series ensures the chart line doesn't break when switching from one dataset to another.

Efficient Charting with WPS Spreadsheet

Create and Format Charts Easily with WPS Office

WPS Spreadsheet provides intuitive chart creation tools, making it easy to connect data series, customize transition points, and visualize your data seamlessly.

1. Open your data: Launch WPS Spreadsheet and open your workbook containing the chart data.
2. Insert a Chart: Highlight your data series, navigate to the 'Insert' tab, and select 'Chart' to insert a Line or Scatter chart.
3. Select the Marker: Double-click the specific transition point on the chart to open the object formatting pane on the right side of the screen.
4. Adjust Colors: Under the Marker settings, change the color to red and ensure the series lines are connected properly between datasets.

Free and lightweight alternative to Microsoft ExcelHighly compatible with Microsoft Office .xlsx and .xls formatsIntuitive chart formatting pane for customizing data points and seriesAbundant built-in chart templates for quick visualization

Frequently Asked Questions

Why is there a gap between my two data series in the chart?

Gaps occur when the second data series starts in a new row or column without sharing a common data point with the first series. To fix this, repeat the last data point of the first series as the first data point of the second series.

Can I change the color of just one specific data point in a line chart?

Yes. Click once on the chart line to select the entire series, then click a second time on the specific point you want to alter. Right-click and choose 'Format Data Point' to change its marker color without affecting the rest of the line.

How do I show a projected data trend differently from historical data?

Split your data into two columns: one for historical data and one for projected data. Create one overlapping transition point between the two columns, and format the projected series as a dashed line to differentiate it from the solid historical line.

Excel & Data Problems