After EHP6 upgrade in SAP ECC6.0 Stocke not get updated in MMBE after Partial UD

Hello Experts,

Recently we have upgraded our system to EHP6 on ECC 6.0 facing issue in MMBE. We have given Partial UD. after partial UD, some stock suppose to move in Blocked stock as per UD code customization. surprisingly stock not moved to Blocked stock. same is updating through Mb1b transaction.

Thanks in Advance !