A module within Microsoft Viva that serves as an enterprise social networking platform. It fosters community building, open dialogue, and knowledge sharing across an organization.
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I have tested on my Viva community, and it works normally. I can respond/comment on the post more than once and users are able to add new posts.
May I ask does this happen to all of your communities or just this specific one?
You mentioned a single user cannot post, can that user comment in a post? When the user tried to post, does it show any error, or it doesn't have a place for a user to post?
If the user can comment but cannot post, check the settings of the community. Make sure Posting permission is set to Open.
Can you also try creating a new testing community to help narrow down the issue? Check if you also have the similar behaviors in this new community.
I look forward for your reply.
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