The right format is one of the most important factors for smoothly publishing mobile posts. For classic feed posts, a square aspect ratio of 1:1 is ideal. Reels and Stories, on the other hand, should be created in portrait format with an aspect ratio of 9:16, since other formats may not be accepted by the Meta interface.
Anyone creating content directly on the go can already pay attention to the right format while taking the photo: for Stories and Reels, the smartphone should be held upright, while for feed posts a square orientation using the camera grid is recommended. This way, the image matches the intended channel from the start, and cropping afterward can often be avoided.
