In AR for invoices with source= CONTRACT INVOICES, why is the Dr Acc 'Revenue' account?

Summary:

When accounting invoices interfaced from Projects Contracts to AR, the invoice generated for following accounting class as follows

Receivables: Dr

Revenue: Cr.

Please see the attached screen shot below:

As per Oracle's documentation, should it not be as following?

Why is this discrepancy?

Thanks

Atul

Content (required):

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

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