You cannot edit advertisements after posting them. This is because shops might have already seen it in their newsfeed or it might have already been sent out in the FAIRLING newsletter.
Therefore, we highly recommend to check that everything is correct before publishing your advertisement. If you are not sure, on whether your advertisement is ready to be published or not, we always recommend to save the advertisement as as draft. This will have the benefit that you can still go over it with your colleagues or our FAIRLING experts. Also, feel free to check out our helpful Articles on how to design a good advertisement and create a fitting target group.