Unable to Import AP Invoice into Payables due to Error 'PA FLEXBUILD FAILED'

Hi,

I am getting below error when trying to load invoice in to payables.

 Call pa_acc_gen_wf_pkg.ap_inv_generate_account for flexbuilding

------------> l_errmsg ERROR: Only Department 000 is valid for account majors 1

000 thru 3999

(PA Flexbuild 2) pa_acc_gen_wf_pkg.ap_inv_generate_account Failed :Insert Reject

ion

(Insert Rejections 1) Insert into AP_INTERFACE_REJECTIONS, REJECT CODE:PA FLEXBU

ILD FAILED

Please suggest.

Thanks,

Hari.K