What are the copy limits for LinkedIn Message Ad?

LinkedIn Message Ad copy is limited to 60-character headlines, 1500-character body text, and 20-character CTAs.

Where does LinkedIn Message Ad appear on LinkedIn?

LinkedIn Message Ad ads appear in the Inbox placement on LinkedIn.

Where can I find the official LinkedIn Message Ad documentation?

The official source for LinkedIn Message Ad requirements is https://www.linkedin.com/help/lms/answer/a425731, linked from this page.

Are these LinkedIn Message Ad specs kept up to date?

Yes — every spec entry references LinkedIn's official documentation source so dimensions, file size limits, and codec requirements stay in sync as the platform changes.

Can I reuse the same creative for other LinkedIn placements?

Often partially — many LinkedIn placements share aspect ratios but differ in safe zones, duration, or file size. Always cross-check the target placement's spec page before reusing creative.

LinkedIn Message Ad ad specs

LinkedIn Message Ad ads are text creatives. They run in the Inbox placement on LinkedIn. Copy is capped at 60-character headlines, 1500-character body text, and 20-character CTAs, so write tight and front-load the value. Use these requirements to brief designers, validate uploads, and avoid creative rejections in LinkedIn's ad manager.

Headline limit: 60 chars
Body text limit: 1500 chars
CTA limit: 20 chars

Visual specifications

Orientation	any

Copy limits

Headline	60 chars
Primary text	1500 chars
Call to action	20 chars

Notes & source

Subject ≤60, message body ≤1500 chars, custom footer optional.

Official source: https://www.linkedin.com/help/lms/answer/a425731

Frequently asked questions

What are the copy limits for LinkedIn Message Ad?: LinkedIn Message Ad copy is limited to 60-character headlines, 1500-character body text, and 20-character CTAs.
Where does LinkedIn Message Ad appear on LinkedIn?: LinkedIn Message Ad ads appear in the Inbox placement on LinkedIn.
Where can I find the official LinkedIn Message Ad documentation?: The official source for LinkedIn Message Ad requirements is https://www.linkedin.com/help/lms/answer/a425731, linked from this page.
Are these LinkedIn Message Ad specs kept up to date?: Yes — every spec entry references LinkedIn's official documentation source so dimensions, file size limits, and codec requirements stay in sync as the platform changes.
Can I reuse the same creative for other LinkedIn placements?: Often partially — many LinkedIn placements share aspect ratios but differ in safe zones, duration, or file size. Always cross-check the target placement's spec page before reusing creative.