
ActiveCampaign custom field ID mismatch
Why ActiveCampaign custom fields silently fail to update from n8n, and why deal fields specifically require an ID you cannot find anywhere in the ActiveCampaign UI.
Open fix →3 exact-error fixes for n8n + ActiveCampaign automations in production. No broad tutorials — only the failure modes that break a live sync.

Why ActiveCampaign custom fields silently fail to update from n8n, and why deal fields specifically require an ID you cannot find anywhere in the ActiveCampaign UI.
Open fix →
Why the ActiveCampaign Update Contact operation can complete without error while the contact record shows no changes, and what to check before assuming the node is broken.
Open fix →
Why a webhook placed inside an ActiveCampaign automation can fail to send anything to n8n even though the automation itself runs and the contact passes through it.
Open fix →