Error in Posting Vendor down Payment request

Hi

I am getting an error in posting vendor downpayment request. I am using the T Code F-47 and special GL indicator F.

Error: Special GL Indicator F is not defined for down payments

Message No F5053

Diagnosis: The specified GL Indicator is not classified as "Down payment" or not listed in the list of the target special GL indicators "F"

System Response: The entry is not accepted

Procedure: Enter an allowed special GL indicator or indicate a change of the default settings

I have checked the settings in FBKP. The GL Accounts and properties have been maintained there. The target GL Indicator A is also maintained in the properties. In OBXT also the GL Indicator has been defined. What could be the error?

Regards

Rahul Sharma