SAP PPDS

I person a unusual lawsuit successful my PPDS. I person 1 worldly with Fc req/ PIRs successful RRP3 presumption and not their successful MD04.

I privation to delete those PIRs successful RRP3 but it is not happening. I tried utilizing /sapapo/ md74 and MD74. 

Please assistance maine retired and determination are nary planned orders for those PIRs