Solution : https://service.sap.com/sap/support/notes/1365892 (SAP Service marketplace login required)
Key words :
planned date set type, end time values, rfc import params, existing activity/create, backend transaction object, complete activity reason, giving actual dates, set properly, activity management, crm backend
Related Notes :
1374657 | 1.5 SP3 SAMA .net/Java fixes Composite note |