Is possible using REST API apply an Item to an existing Expense Report?

Summary:

The idea is clear: when we have an expense item created in our work area, we would need to apply it to an Expense Report created before.

I have found in the documentation ( ) this API

PATCH action not supported

Method: PATCH

Path: /fscmRestApi/resources/11.13.18.05/expenses/{expensesUniqID}/child/matchedExpenses/{MatchReference}

But I would like to know if that's meant clearly, make a PATCH impossible.

What we are trying to do in our project is add in any way automatically an expense item to an expense report.

Thanks.