If the standard specification has to be modified and this class has been used previously as a copy source for project specs, the copied specification can be updated with the new entries from the source.
Modified Source Specification
Modified Destination Specification
Spec line item updates occur based on a reference is stored for each item in the copy record. The relationship between the original and copied item is available for subsequent updates.
If this information is not present because the specification has been copied before the introduction of this feature, you can use the checkbox "Use Order Seq" in S.50.05 and use the field "Order Seq" (S.50.06) to select the correct specification item for update. This requires the field "Order Seq" to be unique in the destination specification. If the checkbox is checked, the database relation is not used even it exists!