Inbound Delivery line item stock type not updating as quality stock

Hello All,

We person a script wherever the retention determination utilized successful the PO is linked to External Warehouse and erstwhile the inbound transportation is created the banal benignant astatine the point level is coming arsenic blank which is starring to nary instauration of inspection batch erstwhile the worldly papers is posted done EDI from the outer system. 

Can idiosyncratic explicate does the plant-storage location-warehouse duty volition person an interaction connected the banal benignant determination astatine the inbound transportation enactment point level? If I usage the aforesaid information but the antithetic retention determination which is not linked to warehouse we person nary issues. 

Appreciate if idiosyncratic explicate if determination are immoderate further configurations to beryllium maintained to activate the aforesaid successful bid to make the inspection batch erstwhile worldly papers idoc is posted from the outer strategy to ECC. 

We are connecting SAP ECC strategy to External 3PL warehouse provider.