Is it possible to auto approve cancelled invoice lines ?

Summary:

We would like to be able to auto-approve invoice lines that have been cancelled, so they do not get sent to the cost center manager for approval.

Content (required):

We would like to be able to auto-approve invoice lines that have been cancelled. As our invoice approval rules are currently all at the header level, we have tried adding invoice line approval rules to auto approve lines that have Amount = 0 , but without success. Does anyone know if this is possible, please? 

Version (include the version you are using, if applicable):

21D

Code Snippet (add any code snippets that support your topic, if applicable):