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If EO is not managed by NB then the EO user has to assign the product to an NB. EO user, in this case, can also un-assign the product from NB if no certificate is published, in-progress or suspended.
The final section in the product details page will show audit information. With button to edit the product details or to lock it.
Locking the product details will prevent EO users from editing it. NB users will still be able to edit locked products details according to their privileges; if the product has a published certificate only NB user with revise privilege will be able to edit.
When locking a product all EO locations related to the product will be locked from editing also.