How to DTW item period and volume discounts

Dear All,

We are using SAP88 P21. US localization.

We need to import data to Inventory >> Price List >> period and volume discounts

However, I DTW, I can only see BP special price template and in DTW interface, I cannot see period and volume discounts in anywhere. Is there a way for us to load it? Thanks.

Regards,

Yuka