I have a problem wherein certain posted GR/IR's cannot be cleared via MR11. Whenever I enter the purchase order numbers to be cleared, the system doesn't seem to recognize it. Quantity differences exist for the GR's and IR's (as reported in MB5S), thus the program should be able to report it in MR11. No authorization problems in SU53 are also detected, so this is also not the issue. Where could've the problem originated in this case? Anybody had the same experience with ours? Thanks.