Home > @vsf-enterprise/bigcommerce-api > OrderItem > external_id

# OrderItem.external_id property

ID of the order in another system. For example, the Amazon Order ID if this is an Amazon order. This field can be updated in a /POST, but using a /PUT to update the order will return a 400 error. The field 'external_id' cannot be written to. Please remove it from your request before trying again. It can not be overwritten once set.

Signature:

external_id?: any | null;