Project event for negative amount is getting created as invoice instead of credit memo

Summary:

Project event for negative amount is getting created as invoice instead of credit memo and hence not listed in the credit memo application in AR. Is there a way we can make the system create all project events with negative amounts as credit memo's rather than negative invocies

Content (please ensure you mask any confidential information):

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

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