The plugins use 2 custom tables to store relations datas :
https://github.com/scribu/wp-posts-to-posts/wiki/Data-organization
Then if the plugin has not foreseen a export functionality, you have to retrieve the tables.
The plugins use 2 custom tables to store relations datas :
https://github.com/scribu/wp-posts-to-posts/wiki/Data-organization
Then if the plugin has not foreseen a export functionality, you have to retrieve the tables.