Solution : https://service.sap.com/sap/support/notes/860196 (SAP Service marketplace login required)
Key words :
system creates confirmed schedule lines, receive confirmed schedule lines, local atp scenario reason, activated local atp, field gs_bapisdhd1-doc_class, atp scenario 'b', system response corresponds, standard system behavior, 'xyz' item category, relevant item category
Related Notes :
1142390 | ATP: Inconsistent Customizing between R\3 and CRM |
889051 | Scenario A: Overview and settings |
819744 | Composite SAP Note: ATP in CRM |