How to set authorization as not required for expense report from Webservice?

Summary:

How to set authorization as not required for expense report from Webservice?

Content (please ensure you mask any confidential information):

For Now, all expense reports have authorization as required.

We also create expense report from webservice.

How to set the condition so if it's expense report from webservice, the authorization is not required?

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

23D

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