When adding a Production Order for a finished good which also includes finished goods in its Bill of Materials, you will see a checkbox appear allowing you to create the deeper level Production Orders as well, as below:

Upon clicking the New Production Order all the Production Orders necessary to make the top-level finished good will be created and you will be directed to a list of them, like below:

The associated Production Orders (the top-level one and the production orders for the sub-assemblies) are connected by the Order Reference number which is automatically generated.

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