Assigning a Deletion Flag to "Material" PRTs 
You can mark a production resources/tools (PRT) master record of the category "Material" for deletion by assigning a deletion flag to it.
You can set the deletion flag at different levels in the organizational hierarchy, for example on the following levels:
If you set the deletion flag at client level, the archiving program will delete the material master record completely at all existing organizational levels.
If you assign the deletion flag at plant level, the archiving program will delete the material master record at this and all lower levels. The data on a higher level remains intact.
Procedure
To assign a deletion flag to a PRT of the category "Material", perform the following six steps:
followed by the menu bar sequence
ProdRes/Tools ® Material ® Change Immediately/Plan.
The initial screen for changing a material PRT is displayed.
However, do not press ENTER .
The initial screen for assigning a deletion flag is displayed.
The help functions support you in this.
The initial screen Flag Material for Deletion: Initial Screen is displayed.
On the left side of this screen you will see a field for the deletion flag.
The system assigns a deletion flag to the PRT. The next time the archiving program is run, the material will either be completely deleted or will be deleted on the specified levels with the specified criteria.

If you want to remove the deletion flag, perform steps 1 to 5 as described above. You can then remove the criteria for the deletion flag in the data entry fields and save the changes to the master record.
For more information on how to delete material master records, see the SAP document Managing Material Master Data.