Sales Order Lines Custom Field Value Change

[SBarnes]

Is there a simple a way to detect when a sales order line custom field value has changed or do you have to look at the property changed event on each custom fields in each line?

Basically I am wanting to fire off an event after the order is saved in certain custom fields on any of the lines have changed.

[Mike.Sheen]

You can examine the ChangeFlag of the CustomFieldValue of interest.

Each sales order line has a CustomFieldValues collection - and the ChangeFlag of each of those will only be true if they have changed.