Facebook (#100): Page Not Connected

Facebook post failed with (#100) does not resolve to a valid user ID. Repair the Page in place, or reconnect and select it.

Error: (#100) 0 does not resolve to a valid user ID

Your Facebook post failed even though the connection still looks green. The Page was never granted to Flamel at login (common when a location has its own Page separate from the brand Page).

Hub admins: repair the Page first

You often do not need a full reconnect. On the hub's Connected Accounts page, open the Connected tab and expand the Needs connection group under Facebook. Click Fix automatically. Flamel mints a posting token from a connected admin who already manages the Page. Nobody signs in again, and you keep the account and its history. If the Page stays flagged, use the full reconnect below.

Reconnect and select the Page:

Switch into the affected workspace and open studio.flamel.ai/accounts.

On the Facebook account, click ... then Remove Account.

Click Connect Facebook and sign in with an admin of the Page you want to post to.

On the Page-selection screen you have two options (pick one):

Option 1, recommended: Opt in to all current and future Pages. Most flexible: Flamel automatically gets any Page you add later, so a new workspace can never accidentally cut off an existing one. You never have to remember to re-select Pages.
Option 2: Select Pages manually, but select EVERY Page you want Flamel to access across all workspaces, not just the one you are fixing. Confirm the Page you need is checked.

Back in Flamel, confirm the Page shows green, then reschedule the post.

Facebook access is global per login

Whatever you select becomes the complete list of Pages Flamel can access. If you select fewer Pages than before, Facebook removes access to the rest across all your workspaces. Option 1 avoids this risk entirely; with Option 2 you must re-select every Page every time.

Removing the account pauses and hides that platform's future scheduled posts. Reconnecting restores the ones that are still in the future. See Connection Expired.

Posting to Instagram instead? See Instagram (#10): account not connected.