Explanation:
System allows the users to enter quantity for the particular item on the basis of the scheme selected in order. Sometimes users define the promotions / scheme for a particular item and then describe the scheme differently from the actual scheme e.g. if the scheme is 9 + 9 (9 free on 9 items ) and the description states 9 + 1 (9 free on 1 item). When such a definition is given the users are confused and enter invalid quantities for the item in despatch. Which can cause an issue to occur while posting.
Remedies:
Scheme definition should be done correctly. Users should ensure that the description should mention the scheme as it is.