
The issue is found to be happening only in case when user upload items in SAP with period and volume discounts from excel. It was observed that the Special price list was expired however the discount was still getting applied at POS.
Symptoms :
There is no Discount column available in SAP B1 on the period and volume discount screen for OSPP table but the "Discount " column is available in OSPP table. So when the price lists are being uploaded through DTW a discount was being added in the OSPP table template. That's where the issue was occurring.
If the Price list are uploaded via DTW in SAP then it is advised to not put any discount on the OSPP template.