- Image: we recommend a 4:3 ratio with the ideal size being 1000x750. Minimum size 300x250. We accept .png or .jpg
- Title/Headline: we recommend 50 - 90 characters. The headline should not be over 90 characters, including spaces.
- Description: We recommend 50 - 140 characters and not exceeding 200 characters. Note that this character count includes spaces.
- Buyers must use Mediamath's bulk upload Excel template to enter their native components across all their native campaigns.