Error: Not possible to determine a consumption account

Hi

I am not sure if this is the right forum to post this question. If this is not the correct place please let me know.

I have created a webdynpro application to create a requisition. I used a dataset to create a requisition successfully in the R3 system via MEW0 and ME51.

When I use the same dataset to create a requisition from the webdynpro application, I get the error "Not possible to determine a consumption account".

I am using Cost Center (K) for account assignment category and am also entering data for the cost center number (Field Name: COST_CTR), the G/L account number(G_L_ACCT) and the Controlling Area (CO_AREA).

Please help.

Thanks

Sriram