Hi,
As of my knowledge, there is no standard transaction to get the list of blocked materials. You may create a query in SQVI transaction or develop an abap report for the same, using the tables MARA, MARC, & MARD as per requirement.
If you use MM06 and put deletion flag for the materials, you can track the same with the following table and fields:
DF at Client Level: MARA-LVORM
DF at Plant Level: MARC-LVORM
DF at Storage Loc Level : MARD-LVORM
DF at Sales Org Level: MVKE-LVORM
If you block the materials using x plant material status or plant specific status, you can use the fields MARA-MSTA or MARC-MMSTA as explained by Dev.
Regards,
AKPT