Once the script and storyboard are ready, production starts. It is then no longer possible to simply make major changes. That is why we always ask for a clear and final agreement to continue the production.
During the feedback rounds we can almost always make small changes. Think of adjusting text on screen, changing colours, adding characters or changing icons.
We cannot simply make major changes such as changing the structure of the animation, adding scenes or changing voice-over texts. If this is necessary, additional costs may be incurred. It can also affect the production time.