"Deaktiv" field is empty in table DFKKMOP for BB plan

Hi All,

We are facing this issue, a budget billing plan is deactivated because of annual invoice and new budget billing plan is created.

For old budget billing plan, we can see deactivating invoice document in header table "EABP" and also in header data in EA63, however in "DFKKMOP" table the field for deactivating invoice  document (Deaktiv) is empty.

These invoice documents are not reversed and this behavior is observed only for few Budget billing plans.

Any input for possible cause is appreciated.

Thanks in advance.