N8n Activation Key Has Already Been Used On This Instance ^hot^ Site

This message appears in (a workflow automation tool) when you try to activate a paid license key (e.g., for n8n’s enterprise features) on a specific server instance, but that same key has already been activated on another instance.

:

: If you moved your n8n data to a new server or container but kept the old .n8n configuration folder, the Instance ID remains the same. The server remembers the previous activation. n8n activation key has already been used on this instance

If the "Claim" button does not work or is unavailable, it is possible the license is "stuck" on an old Instance ID that n8n refuses to detach.

: Your License Key and your Instance ID (found under Settings > Environment variables as N8N_INSTANCE_ID ). This message appears in (a workflow automation tool)

The core reason is that n8n ties its license key to a unique . This situation usually arises in one of three scenarios:

First, check if your instance is actually already registered. Navigate to > Usage and Plan . If the "Claim" button does not work or

When setting up or migrating a self-hosted n8n instance, you may encounter the following error message:

If you are attempting to activate your n8n license key and receive the error message it indicates a mismatch between your current attempt and the records stored in the n8n database.