Custom Field connection through multiple Business Context

[matsrossland]

Hi, 

Is it possible to connect two different Custom Fields with different Business Contexts? 

We have created two custom fields containing a UN number, one for Master Data: Product General and one for Sales: Sales Document Item. They have the type of "Association to Business Object" and are connected to our Custom Business Object where we maintain UN number data. 

 

Now my question is:
Is it possible to connect these two custom fields so that if a product is given a UN number in the "Manage Product Master Data" app (first custom field) - that it will be automatically filled in the "Custom Fields" section of a sales order if the product entered has data in the custom field?  

Product Master Data custom field:

Sales Order custom field:

We are operating on a SAP S/4HANA Cloud, Public Edition.