Inbound IDOC getting wrong material from the AUSP table

Hello, I'm encountering an issue with my inbound IDOC. Its source of material is from the table AUSP.

Unfortunately, the Material A which we will name Isopropyl Alcohol and Material B which is an Ethyl Alcohol, they have the same AUSP-ATWRT value. Is there a way to fix the duplicate value of AUSP-ATWRT so I can display the correct material on my IDOC?

The IDOC should be displaying Isopropyl Alcohol, but it is displaying Ethyl Alcohol because the value of AUSP-ATWRT causes confusion on mapping the correct material.

If the mapping of IDOC material is using the AUSP-ATWRT, why is is getting the Ethyl Alcohol instead of Isopropyl which is first object in the AUSP table?