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Go to backend of Magento 2, Product->Add Product. Enter information into each of the form's fields. Click Advanced Pricing to set Sale label and click Set product a new form to set New label then click save button.
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Frontend Usage
Customer can easily New label and Sale label in Products. To see products detail, when customer chooses one product. It displays all things that customer needs. Include: new label icon, sale label icon, advanced pricing of sale that admin has set product in backend.
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