Solution : https://service.sap.com/sap/support/notes/500588 (SAP Service marketplace login required)
Key words : 
sap delivered fleet card processing process id 'pc02', sap-ssr delivered process definitions, changed process definitions, dbt aggregation works, aggregation schema solution 1, badi oira_process_dbt handles, -mine-specific note, deleting line items, line items based, process definitions
Related Notes : 
       
| 499925 | SSR Collective Note beginning 27.02.02 |