Connecting an ad account hangs at „Konten werden geladen …“ or names the wrong platform

Area: Ad accounts · Updated: 3 Nov 2026 · Auf Deutsch · All articles

Symptoms

  • Step 3 „Welche Konten gehören zu …?“ shows „Das passt gerade nicht zum gespeicherten Stand. Lade die Seite neu und prüf die Angaben.“ with an error id, and reloading does not help (before 3.11.2026).
  • „Konten werden geladen …“ never finishes.
  • The side card „Verbindung“ says Meta Ads although you were connecting LinkedIn Ads, Google Ads or TikTok Ads.
  • Under „Verbundene Konten“ a platform shows „Die Anmeldung wurde nicht abgeschlossen.“ although the same platform is connected and its accounts count.

Cause

  • Every click on „Weiter zu …“ starts a new sign-in with its own one-time link (valid 10 minutes). If a sign-in never comes back from the platform (window closed, signed in elsewhere, started again), it stays unfinished. Signing in again creates a new, separate connection; that is how it should work, the old attempt is not continued.
  • The wizard was opened with the id of such an unfinished or disconnected sign-in (an older tab, a bookmark, „Konten auswählen“ on the unfinished row). Until 3.11.2026 it asked that sign-in for its ad accounts, the server refused (it has none), the wizard kept waiting and fell back to the recommended platform for the label.
  • Since 3.11.2026 the wizard first asks where the sign-in stands. A working connection of the same platform is offered with „Weiter zu Konten“, otherwise „Anmeldung neu starten“. Unfinished sign-ins disappear by themselves: at once when a newer sign-in of the platform becomes active, otherwise 40 minutes after the link was created (within the hour).

How to fix it

1. Continue with the working connection

  • In the dashboard: Einstellungen › Werbekonten & Budget › Werbekonto verbinden › Weiter zu Konten
  • With Claude (MCP): ads_connection_status {"project":"my-shop","connection_id":"9c4e1a7b-3d2f-4b8a-a5c6-1e7d9f2b4c83"}

connection_id is the id from the address (?connection=…). state abandoned, removed or pending with an activeConnectionId: the platform is already connected through that connection; next names it. Choose its accounts in the wizard or with ads_accounts_select (connection_id = activeConnectionId).

2. Start the sign-in again

  • In the dashboard: Einstellungen › Werbekonten & Budget › Werbekonto verbinden › Anmeldung neu starten
  • With Claude (MCP): No MCP tool (the person signs in at the ad platform in the browser; Claude, an API key or the X3 App cannot do it)

Without an activeConnectionId nothing is connected yet: sign in once more, then choose the accounts. Chosen accounts and cost history of an expired login are kept.

3. Check that the unfinished sign-in is gone

  • In the dashboard: Einstellungen › Werbekonten & Budget › Verbundene Konten
  • With Claude (MCP): ads_connections_list {"project":"my-shop"}

Only working or still running sign-ins are listed. A still running one (pending, under 10 minutes old) shows „Anmeldung neu starten“.

How to tell it worked

  • The wizard shows the accounts of the platform you are connecting, with its real name in the side card.
  • ads_connection_status answers ready for the connection you continue with; ads_connections_list no longer lists the old attempt.