Special GL Indicator

Dear,

I am raising DPR (F-47) with Special GL Indicator with " A / Y / Z " but when i check DPR in FBL1n with noted items Special GL Indicator is showing " F " (which is for Down payment request) in all cases however payment entry through E-Payment for corresponding DPR is showing correct Spcl GL indicator.

Can anyone advice possible reason for this.

Thanks

Irfan