Trouble connecting Adobe Express Scheduler with Facebook business page

Hello team,

I'm encountering issues with linking some Facebook pages to our scheduler. Not all the pages which I fully own and want to add are displayed. Could you please explain in detail which specific settings or checkboxes need to be enabled to successfully integrate both Facebook and Instagram pages into the scheduler? I have compared the settings of various pages and they seem identical to those that are available in the scheduler. I would greatly appreciate your step-by-step assistance in resolving this issue.