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Subcontracting on Subassemblies

Hello,

We have some products which have sub-production process in its sub-assemblies. I want to ask You that How can I produce this products on ErpNext?

Operation of this Products:

1-)Cutting (in our Work in Progress Warehouse)
2-)Galvanising (This operation occur in warehouse of our supplier. We supply material which is output of cutting operation for supplier. )
3-)Assembling for product from galvanizing operation item which come from supplier (in our Work in Progress Warehouse)

Thank you in advance for your answers.

Hello,
Please refer document.It may be help you

https://erpnext.com/docs/user/manual/en/manufacturing/subcontracting

I read this document and I tried something. When I tried creating work order with sales order, Erpnext create 2 work order. One of these work order is about Cutting Operation, other one is about Assembling Operation. This situation is true because I create material request with work order or job card and I occur subcontracting with purchase order. But when I tried creating work order with production plan, if I click “Make Work Order for Sub Assembly Items”, Erpnext create work order for each material. In this situation I have to manage manually work order for subcontracting. If I don’t click “Make Work Order for Sub Assembly Items”, Erpnext create only one work order which is for products, this situation I can’t manage subcontracting.

How can I execute this manufacturing processes in erpnext?