Hi ​@jwo1908 

Help us have more info about the error by posting screenshots showing how your Zap step is configured in EDIT mode while in the CONFIGURE tab with the field mappings visible.

​@jwo1908 

Help links for using FB Pages in Zaps: https://zapier.com/apps/facebook-pages/integrations#help

You may need to reconnect your FB Pages app account here: https://zapier.com/app/connections

Right. I have tried these steps, leading to the original post.

​@jwo1908 

Zap step error indicates an issue with an invalid appsecret_proof provided in the API argument as part of the underlying API request.

That could either be due to an invalid Zap app account connection: https://zapier.com/app/connections

Perhaps the connected Zap app account connection needs to have permissions/settings changed in FB/Meta.

Or perhaps there is a bug with this Zap app action.

You can try opening a ticket with Zapier Support: https://zapier.com/app/get-help

This seems to still be the Business Admin problem. When I switched to my private FB account, it posted.

Just FYI for everyone out there.

Hi ​@jwo1908,

Your posting issue in Facebook's Business Admin likely stems from permissions or account settings. Ensure your Business Admin account has the proper posting permissions and double-check your Business Manager settings. Since switching to a private account worked, the restriction may be within Business Admin settings. If problems persist, consult Facebook Support for further assistance. Sharing your experience helps others troubleshoot similar challenges.

If you have any other questions or need further guidance, please ask. We're here to support you every step of the way.