Hi ​@Christophe Contant,

just to clarify - since you mention activities, I suppose you mean comments at activities, correct?

There’s a daily limit (that isn't specified in documentation) which may stop you from commenting at some point. The aim is to prevent spam. You just need to wait 24 hrs and you should be able to post comments again. 

Hi Jana_S,

That s it and it happens really often for me, not really a good feeling because your mates wrote something and you can’t answer them …

And thx for your help and answer :-))

Don’t understand that ...

Just out of curiosity, would you know how many comments have you posted when you found out that you can't comment anymore? Was it something like 20, or 100, or 1000..? (I would usually try things myself but to be honest, this particular scenario might be tricky to try, unless I want to get blocked myself… it would be asking for trouble 🙈😃)

between 50 & 100 i think and a lot of kudos…