Adobe Target User interface has been updated to support redirect offers in activities that use Analytics for Target (A4T) as the reporting source. This functionality will require at.js 0.9.6, which will be released in the next couple weeks.
For detailed release notes see : https://marketing.adobe.com/resources/help/en_US/target/target/r_release_notes.html
at.js 0.9.6 is now released & you can now use redirect offers in activities that use Analytics as the reporting source.
Your implementation must meet the following minimum requirements:
These libraries must be included on both the page with the redirect offer and the page to which the visitor is redirected. As a part of this change, new URL parameters will automatically be added to your redirect URLs if the Visitor Id service is implemented on your site, regardless of whether or not you are using Analytics as the reporting source for that activity.
For more information, see Redirect Offers - A4T FAQ.
For Information on at.js versions See