For production orders the following enhancement is available:
You can use this enhancement to specify for the statistical assembly function that changes to the sales order item are no longer possible if these would lead to a change in the assigned production order.
You can use this enhancement for example to prevent the configuration in the sales order being changed, for example after the production order has been released.
Enhancement PPCO0003 contains the following enhancement component:
Function exit
Enhancememnts, as opposed to modifications, are fundamentally independent of releases since they are not made in the SAP original, but in a name space that is reserved for customers.