I am working on project where i am doing RRB billing under SD with integration of PS.Once I process DP91 under that screen system issuing a error message "Pricing of Item not found" I have checked all the possible customization but no luck. However, when i used that Debit memo document under VA01 independently with same pricing procedure which i am used under DP91 it allows me to Bill. Kindly provide me your valuable feedback as earliest as possible.
Looking forward to hear from you soon.
SD Certified Consultant