You have received your suppliers' invoice for a specific part and the part's code comes already using a line code to distinguish the different groups of products (ie. NSF for oil filters from Napa):

 

In the main menu of GEM-CAR, click on the POS

• Select an estimate.

• Add the product code and click on the upwards arrow.

• Enter the line code and click on “Enter” to continue the operation.

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