Bill of materials have a tolling line which we use to place tolling service p.os to our contract manufacturers when creating a work order. We have different “other charge items” set up to use as the tolling line depending on the service. When the workorder is created it generates a purchase order for that assembly. Problem we are running into is that when sending over p.os we have to send over separate p.os as opposed to generating 1 p.o with the other charge items as part of the p.o lines. We do not want to lose the connection to the work order which is currently part of the main tab. How would you suggest we can achieve one p.o vs xx amount of p.os when dealing with multiple product run oders at the same contract manufacturer? Netsuite support was not able to guide us.

As @KevinJ of Kansas said you need to do some serious customization. while back I have done simmilar with invoices when consolidated invoice was available natively. Created few custom records with parent child relationship to hold the source invoice data. Then using a complex saved search and suitelet to generate consolidated invoice and cross reference all the related record. You can follow the same schema just change the source transaction to PO instead of SO.