The application of restructuring/forbearance measures (e.g. split Balance) on an underlying exposure may result in the origination of two or more new exposure identifiers substituting the original exposure identifier. In such cases the technical rules and validations enforced by the new XML schema (i.e exposure identifiers must be unique) do not allow linking the Original Underlying Exposure Identifier with the New Underlying Exposure Identifiers since this is not an one-to-one relationship. Please advise on the treatment of these cases.