During campaign setup, your last step before publishing is to upload creatives. You can upload one at a time or bulk upload to save some time.
You can upload up to 10 video creatives, collectively up to 200 MB
Any and all approved creatives will run for your campaign, and Roku will choose which creative to show based on which we think will perform best. This is a great way to test and learn across a set of video creatives.
If you have multiple approved creatives and you need to control the creative weighting (E.g., Video1 at 10% and Video2 at 90%), we recommend setting up separate campaigns with one creative and allocating your budgets to align with creative weighting.
For example, if you have $1,000 to spend and you want to ensure that $100 (10%) runs against Video1 and $900 (90%) runs against Video2, create two campaigns with those budgets and their respective creatives.