Diagnosis
You have tried to create a new delivery schedule even though deliverieswithout GI posting exist in the schedulingagreement.

Procedure
Check whether the open deliveries are consistent with the new deliveryschedule deadlines. If this is not the case, delete the appropriatedeliveries as necessary.
You can determine which deliveries are due to be posted to GI by themissing GI date found in the display of deliveries in the schedulingagreement.
Correction deliveries are not taken into account when checking for GIposting.