Hello,
I have a problem with a new report.
Under thetransactionSE80I havecreated and activatedanew program.
I can start the program with the direct processing 
.
If I call the program with the assigned transaction, then the selection material is displayed.
I choose the material and execute F8.
Nothing happens and the SAP main menu is displayed.
My program:
REPORT ZREQUIREMENTSTOPRODUCTION.
parameters mat_no like mara-matnr matchcode object mat1. " default
data it_mapl TYPE TABLE OF MAPL.
data lt_mapl LIKE LINE OF it_mapl.
data it_plko TYPE TABLE OF PLKO.
data lt_plko LIKE LINE OF it_plko.
data it_plas TYPE TABLE OF PLAS.
data lt_plas LIKE LINE OF it_plas.
data it_plmk TYPE TABLE OF PLMK.
data lt_plmk LIKE LINE OF it_plmk.
SELECT * FROM MAPL INTO lt_mapl WHERE WERKS = 'MEMC' AND PLNTY = 'Q' AND LOEKZ <> 'X' AND MATNR = MAT_NO.
APPEND lt_mapl TO it_mapl.
ENDSELECT.
LOOP AT it_MAPL INTO lt_MAPL.
SELECT * FROM PLKO INTO lt_plko WHERE PLNTY = 'Q' AND PLNNR = lt_mapl-PLNNR AND LOEKZ <> 'X' AND VERWE = '5'.
APPEND lt_plko TO it_plko.
ENDSELECT.
ENDLOOP.
LOOP AT it_PLKO INTO lt_PLKO.
SELECT * FROM PLAS INTO lt_PLAS WHERE PLNTY = 'Q' AND PLNNR = lt_PLKO-PLNNR AND PLNAL = lt_PLKO-PLNAL AND LOEKZ <> 'X'.
APPEND lt_PLAS TO it_PLAS.
ENDSELECT.
ENDLOOP.
LOOP AT it_PLAS INTO lt_PLAS.
SELECT * FROM PLMK INTO lt_PLMK WHERE PLNTY = lt_PLAS-PLNTY AND PLNNR = lt_PLAS-PLNNR AND PLNKN = lt_PLAS-PLNKN AND LOEKZ <> 'X'.
APPEND lt_PLMK TO it_PLMK.
ENDSELECT.
ENDLOOP.
write: / text-z05.
write: / text-z10.
LOOP AT it_PLMK InTO lt_PLMK.
write / lt_PLMK-VERWMERKM.
write 10 lt_PLMK-KURZTEXT.
write 45 lt_PLMK-MASSEINHSW.
IF lt_PLMK-SOLLWNI IS NOT INITIAL.
write 50 lt_PLMK-SOLLWERT.
ELSE.
write 50 ' '.
ENDIF.
IF lt_PLMK-TOLOBNI IS NOT INITIAL.
write 72 lt_PLMK-TOLERANZOB.
ELSE.
write 72 ' '.
ENDIF.
IF lt_PLMK-TOLUNNI IS NOT INITIAL.
write 97 lt_PLMK-TOLERANZUN.
ELSE.
write 97 ' '.
ENDIF.
write 122 lt_PLMK-STICHPRVER.
ENDLOOP.
Cananyone helpme?
Ulrike