The thumbnail of the social media post is created through the logo uploaded to the job advertisement. The logo should be uploaded in the format specified by the instructions, so that the logo is large and fully visible in the thumbnail (picture 1). Otherwise, the thumbnail is cropped and parts of it might not be visible (picture 2).
The logo uploaded to the job advertisement should be 1200x630px. The logo may be larger, but the ratio should stay the same. In case that the aspect ratio of the logo is not suitable, you should add some empty space to the edges (picture 3).
Recommended logo size 1200x630px