Transfer the quota entitlement to another quota through IT 2012

Hi everyone,

Can anybody help me on this requirement.

Hi have Quota XX which is accured every year for an employee and in march or april employee request to transfer the unused quota from XX max say 12 to transfer to another quota YY using IT 2012.

the same quota which is transfeered to YY should be deducted from XX.

Can any one help me in writting the PCR and configuration part of infotype 2012