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Placing Order in Ofbiz using Order notification information from Google
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Order created by googlecheckout response.
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Above image shows order detail which is created through Google Checkout process. In this we can see Google order Id near orderId on top menu bar.
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Create a return of the orders which have been placed using googlecheckout response. See the Screen below to understand it in more appropriate way.
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Return Items from more than one Orders
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In above screen you can see that two returns have been created of the orders which were placed trough Google.
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Above return will be updated to order which is present in Google area.
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Return created in Google Area
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Above screen contains the information of reruns and refunds. 
Here you can see in Order details. Its showing refund information.
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For configuring merchant account following steps needs to be performed.
Click on Google Checkout button present in the secondary menu section. You will be redirected to the configuration page.
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Configure Merchant Information from here.
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Above screen is used for configuring Merchant information like merchant Id, merchant key etc.
For configuring shipping method we will you the screen present below.
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Shipping Methods Configuration
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Above screen is used for configure shipping methods for Google Checkout process.