Balancing field "Profit Center" not filled with Dummy Commitment

Dear Experts,

During Vendor invoice posting (FB60) in FI, system is issuing the error as

Balancing field "Profit Center" in line item 001 not filled

Message no. GLT2201

Here entry is :   Interest Account Dr. (Commitment item entered )

                             Vendor Account Cr. (Dummy Commitment item entered for Reconciliation Account)

Budget consumption is required only for expenses G/L, so we assigned a dummy for Reconciliation Account, but if I enter a Normal Commitment item for

Reconciliation Account (Other than Dummy) then there is no error during invoice posting

Please suggest how to resolve this error, we requires no budget consumption for Reconciliation Account

Regards,

Upendar Singh