Microsoft Invest - Creative character specifications

There are character specifications that you should keep in mind when uploading creatives on to the Microsoft Advertising platform.

For creatives, ensure that there is no invalid or unsupported character present in the VAST url as well as in the 3rd party segments attached to the creative. For example,

  • This is the set of valid VAST characters:

    ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;=.

  • This is a set of common invalid characters:

    |, <, >, ^, {,}.

Additionally:

  • If there are curly brackets { } present in the VAST url or segment, then they must have $ in front of the bracket.
  • Ensure that there is no double % present in the VAST url or segment.

The following table provides the character limit for each field that is available from the Creative screens within the UI:

Field Name Creative Type Corresponding Screen Character Limit
Search All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
- Creative Templates
- Native Assembly > Create New
- Native Assembly > Edit
No Limit
Create New Folder All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
255
Name All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
- Creative Templates > Details
400
Duplicate Name All Creative Templates 30
Media Type All Creative Templates > Details No Limit
Template Code All Creative Templates > Details 100
Macro All Creative Templates > Details > Custom Macros 30
Size All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
32,000
Landing Page URL All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
No Limit
Trackers > Custom Pixels All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
No Limit
Brand URL All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
No Limit
External Identifier All - Creative Manager
- Creative UI > Create New
- Creative UI > Edit
100
- Title
- Custom Title 1 - 5
- Body Text
- Custom Body 1 - 5
- Sponsored By
- Call to Action
- Custom Call to Action 1 - 5
- Display URL
- Custom Display URL 1 - 5
- Price
- Sales Price
- Rating
- Likes
- Downloads
- Phone
- Address
- Additional Description
- Social URL
- Custom Social URL 1 - 5
Native - Creative UI > Create New
- Creative UI > Edit
- Native Assembly > Create New
- Native Assembly > Edit
32,000