Check before save issue

Hi experts,

I need to add some controls before saving a marketing object and i used IF_EX_CRM_MKTPL_OL_OBJ~CHECK_BEFORE_SAVE badi for it.

An error message occured but the object saved even the exporting parameter ev_reject_save = abap true. When i checked the codes i realesed et_failed_objects is initial and i couldn't found why. How can i stop saving when there is an error message appears in badi or ev_reject_save = abap true?

Regards.