To modify an existing service from the Make Sale, POS Product Catalog Search results window:
Perform a Catalog Item search. (More)
Double click on the line item from the POS Product Search window.
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This displays the Make Sale Wizard Service Options.
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Select one of the following options from the window:
Click Next.
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Select a service number and click Next.
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Select the appropriate information from the drop down lists and click Next.
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Click Finish. This displays the added services.