One-page checkout
The purpose of one-page checkout is to gather the information that is needed and complete the sale as quickly as possible without requiring extra clicks for the shopper. When one-page checkout is enabled, the entire checkout process takes place on a single page. Each section of the checkout information is expanded as needed.
One-page checkout is enabled by default. If you are implementing a custom integration or checkout extension, it might be necessary to disable one-page Checkout.
To disable one-page checkout:
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On the Admin sidebar, go to Stores > Settings > Configuration.
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On the left panel, expand Sales and choose Checkout.
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Expand
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For a detailed description of each of these configuration settings, see Checkout Options in the Configuration Reference Guide.
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If the setting is for a specific store view, choose the store view where the configuration applies.
When prompted, click OK to continue.
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Set Enable Onepage Checkout to
No.If necessary, clear the Use system value checkbox to change this setting.
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Click Save Config.