Diagnosis
When a contingent period is changed, the structure of this contingent,and possibly thatof the previous or subsequent contingent, must also be adjusted ifoperational/exercise relationships have already been created for theperiod between the old and new start and end dates. The start and enddates of the relationships are adjusted in line with the change to thecontingent periods.
However, the period of a relationship can be changed only if the statusof the relationship is "Planned".
At least one of the relationships affected by the change to thecontingent period, however, already has a status higher than "Planned".

System Response
To avoid inconsistencies, the system does not permit thecontingent period to be changed to thedates selected.

Procedure
First, reject the relationships that have a higher status and changetheir statuses back to "Planned", or delete them.Alternatively, in certain circumstances, relationships can be delimitedaccordingly so that they no longer intersect the change period.