Is there any integration point between AP & AR ?

Hello,

Business Scenario  :

We have 1 supplier which is ABC (Third Party) and 1 customer which is XYZ.We Export something and recorded in AR as a customer transaction and receipt etc etc which is normally we can record on the other hand between the exporting process we include our third party (supplier in AP) and we are recording expense to pay third party. 

Client Requirement :

Is there any integration point or any standard process so that we can use this scenario on one place ?

In short we can easily know that which transaction in AR is related with supplier and  how many expense we paid in AP against particular export