Table AgreementReleaseHeaderMatch AX2012 R3

Hi to all,

I want to use the Table-Method AgreementHeader->canDeleteAgreement.
In this method AX checks if the agreement is derived from an IC-Agreement an if there are any releaseorders according to the agreement. For non IC agreements this works proper but for agreements which have an IC-relation there are no records in the AgreementReleaseHeaderMatch-Table.

Does anyone know why These releations are not recorded in the AgreementReleaseHeaderMatch-Table?

Thanks in advance for your answers.