WordPress automatic plugin can post from facebook to wordpress automatically and you may need to get your numeric id of the page in case the plugin can not extract the id
1- If your page url or group contains an id in it then copy it. For example here is a page link and you can find that id visible at the link
https://www.facebook.com/Move-in-Realestate-and-investment-330960380336582/
numeric id is 330960380336582
2- If the numeric id is not visible view the page source by pressing CTRL + U
and search for “PageComposerPagelet_” by pressing CTRL + F and you should find the Id After this part
If you didn’t find this search for entity_id
It is imposibil to find ID page, from another page. some solution?
Just add the page URL instead of the ID and the plugin will automatically find it