These elements VALID_FROM and VALID_UNTIL are used to define the modified validity periods of options. If the validity periods have expired, the user of the planning system will be given a warning notice. Use of the option is continued for the planning. The following conditions apply for filling the elements: Both elements filled: available for delivery in the resulting period. Both elements left blank: always available for delivery. Only the VALID_FROM element is filled: available from delivery from this date onwards. Only the VALID_UNTIL element is filled: only available for delivery until this date. Elements with the designation VALID_FROM must not contain a date prior to the catalogue start date. Elements with the designation VALID_UNTIL must not contain a date that is more than 10 years in the future from the catalogue date. The element must be left blank for an indefinite period. |
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