SLIDESHOWS AND ANIMATIONS EVERY 3-4 SECSAny creative involving a change in background or a significant change in animation must trigger every 3-4 seconds (at a minimum - this can be slower at Advertiser’s request) to avoid disturbing our users flow SURVEYS OR POLLS ARE ALLOWEDQuestions can be designed and incorporated into a wallpaper. WeTransfer does not offer detailed survey analysis – we will only provide data based on the interaction with the survey. Standard character limits apply. They recommend redirecting users to a survey provider if the survey is lengthy. IN-WALLPAPER GAMES ARE ALLOWEDAs a highly interactive and custom creative, games will be discussed with the Advertiser on a case by case basis. Standard design guidelines and principles apply. NO FLICKERING OR GLITCHY EFFECTSWeTransfer respects their user‘s flow so effects, animations or videos that flash, flicker, glitch or jitter are not permitted. NO ALTERING, AMENDING OR PLAYING WITH THE WETRANSFER INTERFACEThe WeTransfer logo, the WeTransfer box, and other standard UI-Elements can not be moved. They do not allow wallpaper animation or interaction to “play” with the WeTransfer UI. The change in spot illustration and colors on the WeTransfer interface will only be considered on a case by case basis for special campaigns SUDDEN ANIMATIONS TRIGGERED BY USER INTERACTION MAY BE CONSIDEREDThese will always be reviewed by the studio on a case by case basis, with the WeTransfer standard principles in mind. The service of WeTransfer is not currently optimised for VR, therefore Advertiser’s who would like to include this functionality in their wallpaper will need to review their idea with the studio to determine if it is suitable This will be reviewed on case by case basis and WeTransfer will give design recommendations based on the purpose of the campaign. The button will only direct the users to the Advertiser’s social media page. We do not allow direct share pop up screens or iframe’s directly within the wallpaper. ANIMATING WITH LOTTIETo ensure compatibility on their wallpapers, Advertiser’s who supply their own animations (via AE) are asked to provide files that adhere to the Lottie supported features. NO EMBEDDED EXTERNAL SERVICESWeTransfer does not allow external services such as social media feeds or chat services to be embedded to their wallpapers In some instances where the weight of a coded animation is too heavy WeTransfer may recommend the use of a video rather than animation to ensure the optimum performance of a wallpaper. In these cases WeTransfer will always discuss with the Advertiser before they start a build. ENSURING BROWSER COMPATIBILITYDepending on the level of interaction and animation required, some browsers may not allow full support. WeTransfer may need to simplify the creative on some browsers (usually Internet Explorer) to ensure the optimum performance of the wallpaper. They also support IE11+. | 
