Error: LNMClasses at Customer Purchase Order Screen

When adding a product to the customer order, you experience one or more of these error messages popping up; not allowing you to add the product:

A.

B.

C.


D.

Cause: Single quotation marks on Product SKU Number

A. 'Product'
B. 'Product' '
C. ''Product
D. 3rd consecutive attempt at forcing Error C to go through


Solutions
1. Avoid Single quotation marks on SKU#s
2. Use the Product Selector screen to enter such sku#s with single quotes