lanetteam

Thank you for your reply.

I will make some change if it help me I will post it here.
Thank you ??

user this method
“category__in[]”
https://domain.com/wp/api/get_posts/?category__in%5B%5D=8&category__in%5B%5D=9

This works for me ??

Yes i have.
using that form i am sending replies to my customers.

Yes not able to add users in all child sites. Yes i can add user in Network Admin dashboard. I am able to create new child site but when i logged in any of child site i am not able to add new user in child sites. Even as administrator also.

Yes you are right. I unchecked it and it’s working well.
Thanks.