sales order rejected in ECC does not reflect in APO

Hi Friends,

We are working on ECC6 and APO7.0 for a paper mill- IS Mill functionality. We have MTO ATP with block planning and a exernal trim application. The sales order is rejected in ECC but did not reflect in APO. This has not appeared in daily CCR monitoring also. The order is trimmed, i.e planned for production. I dont see the rejection in APO table: /SAPAPO/SD_DOC Beow are the sequence of events:

-Order rejected 3/25

-Sales order 42678-20 had planned order 587645.

-Planned order 587645 is part of the enquee 4487 that was downloaded to trim on 4/4. Well after the rejection.

Please guide me if there is any way to prevent such occurences, leading to unnecessary planning, blocking of capacities.

Thanks in advance.

Arvind