Advance posting in Travel

Hi All,

I've a scenario where in Trip advance is 2000 and actual trip expense is 1000. After posting the trip to FI, the advance of 1000 is to be recovered thru Payroll.

Just wondering on what config I've missed ?

Also I couldn't find Subschema for postingTravel expenses in Payroll ?

Can any one shed light on this?

Regards,