When creating a Sales/Purchase order or invoice, the system issues server log error messages:
No valid order - MOrder[0-<800003>,IsSOTrx=false,C_DocType_ID=0, GrandTotal=0] OR
No valid invoice - .......
The issue seems to have started occurring after applying the latest commits and DB SQL migration script migration/i4.1/postgresql/201708031402_IDEMPIERE-3443.sql.
Please have a look,
Issue can be closed, I don't seem to have the necessary JIRA privilege.