Happens to the best of us. Facebook’s rejection reason is always cryptic. “Does not reflect the community’s purpose.” Thanks, Mark, very helpful. If that happens, go back to Step Two and tweak it. Remove any words that sound like marketing or spam.
For example, if your group is about swapping plant cuttings, don’t call it “Green Thumb Emporium LLC.” That’s too commercial. Try “The Secret Plant Swap Society” instead. Facebook likes words like “Club,” “Community,” “Collective,” and “Friends.”
Also, check that you haven’t used any symbols or emojis. Facebook hates emojis in group names. They think you’re being unprofessional, even if your group is literally about emoji reactions.