Error in exporting data to sap using BAPI

Hello All,

I'am beginner in BODS..and I have a requirement like 'Loading some Budgeted data from third party tool to SAP CO into the table called COSP,and I found a BAPI for doing so that is "BAPI_COSTACTPLN_POSTPRIMCOST " . So,I tried doing it by using test data but its throwing an error say some 'SAP datastore is Null in RFC commit_work' .you see it on screen shot below.   So, do we need to execute any other BAPI like 'BAPI_TRANSACTION_COMMIT' after executeing the actual BAPI to store/commit our data in SAP.

Please help me out.My advance Thanks

Regards

P.srinivas.