How do I correct heading numbering?

Try this:

1. Use Built-In Heading Styles

Ensure Word built-in Heading 1, Heading 2, and Heading 3. This is crucial for multilevel numbering to work properly.

2. Apply Multilevel List

• Go to the Home tab.
• In the Paragraph group, click the Multilevel List icon.
• Choose “Define New Multilevel List…” at the bottom.

3. Configure Each Level

In the dialog box:

• Level 1:
• Number format: Type Section before the number (e.g., Section 1)
• Link level to style: Heading 1
• Number style: 1, 2, 3, ...
• Level 2:
• Number format: Leave as 1.1
• Include level number from: Level 1
• Link level to style: Heading 2
• Number style: 1, 2, 3, ...
• Level 3:
• Number format: Leave as 1.1.1
• Include level numbers from: Levels 1 and 2
• Link level to style: Heading 3
• Number style: 1, 2, 3, ...

Make sure to check “Restart list after” for each level to ensure numbering resets correctly under each parent.

4. Apply Styles to Your Document

• Select each heading in your document and apply the correct style (Heading 1, Heading 2, etc.).
• The numbering should now reflect the hierarchy: Section 2, 2.1, 2.1.1, etc.

Number your headings - Microsoft Support

How to Create Multilevel Numbered Headings in Word