OM -PA integration for Zinfotypes

Hi All

I have two zinfotype in Om side 9001 function  and 9002 to update category which we have created against position.And we have requirement to update infotype 0001 if we create position to function realtionship.

I mean it should behave similar when we create cost center against postion It0001 infotype screen calls .So here we want infotype 0001 org assisgment should create new reocrd when we do any change on position to function realtionship.

Cna you please suggest the best way to do it .

Regards

Preeti