Hi,
I want to move all topics and posts from forum x to forum y in order to delete x. How can I do that ?
Make a backup of forum X, upload it to forum Y and delete forum X.
I'm not asking about different forum software. I'm asking about moving threads & posts from one forum to another inside the same mybb forum.
The basic way to move those thread one by one. The second way is to rename your X Forum name to your Y Forum name. After that delete Y Forum.