Diagnosis
A rental agreement can only be created for the period which is notoverlapped by another contract. However, a rental agreement, not undernotice, exists here with a rental start before that of the contract tobe created.

Procedure
You can only enter contracts with a rental end before the rental startof the agreement not under notice for this rental unit.
If this message appears as a warning, the date by which the tenant musthave expressed his/her intention to extend the contract has alreadypassed. If this is the case, you confirm the message by pressing'Return'.