Unique Product on Sale,Purchase and Invoice,Uniq Sale Product, uniq Purchase product, Uniq Invoice product

http://www.devintellecs.com/web/image/product.template/3255/image_1920?unique=c8cfda9

odoo app will raise a warning when same Product repeated on Sale,Purchase and Invoice lines, Uniq Sale Product, uniq purchase product, uniq invoice product, uniq sales product

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