IDOC_INPUT_INVOIC_MRM URGENT ERROR plz help

hello expert im using IDOC_INPUT_INVOIC_MRM to create Idoc.

im facing a problem. the docnum in EDIDC and EDIDD is not generated.

it always equal to 00000000000000 so the program cant create the idoc.

do you have any idea plzz, it s urgent im facing the prob since 3 days.