Opencart Marketplace USPS By Stamps.com: USPS By Stamps.com facilitates to provide cost-effective and efficient shipping services.
This shipping integrates USPS By Stamps.com, offering first-class Domestic and International Services.
The shipping cost will calculate based on the weight of the product and the zip code of the seller and the buyer.
Also, the major area of concern for any online store owner is to provide excellent customer service.
This includes delivering products to its customers on time.
With the help of our Marketplace USPS by Stamp.com module, both the seller’s and the admin’s products can ship with the help of USPS shipping services.
Also, this USPS By Stamps.com module requires the store owner to use eminent shipping services to deliver the owner’s and vendor’s products.
USPS or United States Postal Service is a shipping service provider for Domestic or International shipping.
Stamps.com is an online shipping service that integrates with USPS and allows businesses to process and print the shipping labels and USPS stamps through a regular printer.
In order to use this add-on, the admin should install the Opencart Marketplace module first.
Note:
1. This module supports all templates and themes including the Journal theme.
2. Opencart Marketplace USPS By Stamps.com module supports the Multi-Store feature of default Opencart.
Watch the video to understand the Openacart Marketplace USPS by stamps.com module
Configuration
Workflow
Features-Opencart Marketplace USPS By Stamps.com
- Allocate a title to the shipping method which appears during checkout.
- Provide USPS shipping for the vendor’s products.
- The Domestic and International services which the admin selects will display during checkout.
- Here, the admin will set the minimum dimensions for the package.
- Admin can configure the tax class and the weight.
- A geo zone is set for the shipping service.
- The admin sets the minimum number of delivery days.
- Enable or disable the product weight to display on the checkout page.
- Both the admin and the sellers can generate labels in their respective panels.
- Also, the admin and the seller can add the postage amount as well.
- The seller can add USPS Stamps account details in the seller panel.
Installation-Opencart Marketplace USPS By Stamps.com
Upload Files
First, extract the downloaded zip file. After that, open the correct Opencart Version Folder. According to Opencart Version installed in your system.
Now select your specified product version folder, then you need to copy admin, catalog, and system folders into the Opencart root folder directory as shown in the below screenshot.
Refresh Modifications
The user can navigate through Extensions > Modifications. Now click the Refresh button as visible the below screenshot.
Edit User Groups
After that, go to System > Users > Usergroups. And then edit ‘Administrator’. Click module related options under Access Permission and Modify Permission and Save it.
Install
Now navigate to Extensions > Extensions > Shipping and find Marketplace Stamps USPS in the list.
After selecting the Shipping menu option, a new page will appear where you will find all the list of shipping extensions.
You will find Marketplace Stamps USPS extension in the list click the Install button as shown in the below screenshot.
Stamps.com
The user will have to create an account with Stamps.com in order to access their services.
Also, the user can hit the link and proceed to register.
The user will have to click on the Developer Registration button on the stamps.com homepage. 
Also, on clicking the Developer Registration tab, the user will be redirected to the Create a Developer Account page as shown in the image below.
The user will have to fill in the required fields in the Create a Developer Account page and submit the details.
Also, the user will redirect to the License Agreement page.
Once the user clicks on the “I Agree” tab, the user will register to Stamps.com.
Also, the user can then ask the API credentials by sending an email to the Stamps.com. The demo email format is shown in the image below.
The user will receive an email to provide the details such as Name, Company Name, Address, Email etc, from Stamps.com.
A demo email of a revert mail from Stamps.com is shown in the image below.
On providing the details which Stamps.com requires, the user will receive a mail which includes the Integration ID, Username and Password etc.
Also, a demo email that displays the details user requires is shown in the image below.
Hence, by following these steps, the user can register themselves to Stamps.com and acquire the credentials from the same.
Admin Configuration
After successfully installing Marketplace USPS Shipping by Stamps.com.
The admin can view the Marketplace Stamps USPS tab after navigating through the Extension > Extensions > Shipping as shown in the image. 
On Clicking the Edit button, the admin can configure the settings for the Marketplace Stamps USPS as shown in the image below.
Configuration Image- Part 1
Configuration Image- Part 2
The configurations are set by the admin as follows:
Status: The admin can set the status of Marketplace USPS shipping as ‘Enable’ or ‘Disable’.
Test Mode: The admin can choose either Sandbox or Live against this field.
Method Name: Here, the title for the shipping which appears during checkout to the customers.
User ID: The admin has to enter the USPS User ID. Configure the user-id through Stamps.com.
Password: Configure the password through Stamps.com.
Zip Code: It is the admin’s store area zip code.
Allow Seller to add Stamps Account Details: The admin can choose to set this field as Enabled.
The seller cannot add stamp account details if the admin sets this field as Disabled.
Domestic Services: Admin can select the given USPS domestic services, which are visible at the frontend to the customers during the checkout process.
International Services: The admin can select the given USPS international services, which are visible at the frontend to the customers during the checkout process
Dimensions: Here, the admin sets the minimum dimensions required for the package.
Weight Class: Select Pounds or Ounce against the Weight Class for USPS shipping.
Tax Class – Here, select a tax class from the list for this shipping method.
Geo Zone – Select a geographic zone from the list for this shipping method.
Sort Order: Order in which the shipping will display in the frontend.
Delivery Days: The admin can set the number of days that will add to the delivery date estimated by the USPS shipping service provider.
Debug Mode: Set this to Enable, to print request and response in logs.
On saving the settings, a button, namely “Postage Balance” becomes visible on the top right corner of the admin configuration page as shown in the image.
Postage Balance Button Visibility
Furthermore, the Postage Balance button displays the balance amount.
As the admin clicks on the Postage Balance button, a pop up appears where the admin needs to add the postage amount as shown in the image.
Further, the admin will set the options under the Catalog Module Configuration in the base Opencart Marketplace module setting as shown in the image below.
Seller End Workflow
Meanwhile, the seller can navigate to Marketplace Stamps USPS Shipping and add the details such as User ID, Password, Zip Code, and Dimensions as shown below.
On saving the details, a “Postage Balance” button becomes visible as shown in the image below.
On clicking the Postage Balance button, the add postage dropdown becomes visible as shown below.
As the seller clicks on the Add Postage, a pop-up appears, where the seller needs to add the postage amount as shown in the image.
Seller End Order History: Generate Label Button Visibility
Further, the seller can navigate to the Order History section and view any order present in the order list as shown in the image.
This redirects the seller to the Order Information page, where the seller will find the Generate Label icon under the Action column as shown in the image.
If the label is already generated, then one can download it as a PDF.
Generate Label Button Visibility: Admin End View
For the admin order as well the Generate Label icon will be visible.
To view the same, the admin needs to navigate to Sales > Orders and view any order present in the list.
Shipping Label View
Similarly, one can download the shipping label in the seller panel as well.
Note:
- It must be noted that as many times one generates the label, the postage amount will be deducted.
For instance, if for an order one generates a label 10 times, then the postage amount (suppose $20) will be deducted 10 times.
If for an order, no shipping label is available, then an error message shall display as shown in the image below.
Front-End Management
The user can log in to the frontend dashboard and make a purchase under Marketplace USPS By Stamps.
Also, the user can choose an admin/seller’s product and add it to the cart.
On adding the products to the cart, the user can view the cart and proceed to checkout.
The user will have to fill in the billing address and the delivery address details on the checkout page.
On filling in the delivery details, the domestic or international shipping options, which the admin configures will be available under the Delivery Method tab.
Also, the shipping options will be available on the basis of the delivery address.
If the delivery address of the customer is of the United States, then the Domestic Shipping option will display.
If the customer is from anywhere other than the United States then, International Shipping options will display under the Delivery Method.
In the image given above, the user adds an address that falls out of the US zone. Therefore, international shipping options will display during the checkout process.
After selecting the shipping method, the user can choose a payment method and proceed to confirm the order.
Under Confirm Order, the user can see the USPS shipping service’s name and its price as shown in the image below.
In the admin end, the order will be displayed as shown in the image below.
Also, the types of USPS shipping- International as well as Domestic are described below.
User Front-End – International Shipping
The International will apply when the delivery address falls out of the US zone. The shipping options which the admin configures for International Shipping will display during checkout.
On filling the billing address and the delivery address details on the checkout page, the International Shipping options will display under the Delivery Method tab as shown in the image below.
The user will have to select shipping from the given options proceed to confirm the order by choosing a payment method under the Payment Method tab.
Users can see the name of the USPS shipping service and its respective price as shown in the image below.
After placing the order, the user can view the order details on the Order History page.
The user can click on the View button against the order.
On clicking the View button, the user can view complete order details of the order which the user places.
Frontend – Domestic Shipping
The user can make a purchase within the US zone for which the Domestic shipping options will display on the checkout page.
Once the product is added to the cart, the user can view the details of the order and proceed to checkout.
On the checkout page, the user will have to fill in the billing and the delivery details as shown in the image below.
In the delivery details section, the user fills in the address which falls in the US zone.
Once the delivery address details are set by the user, the options for Domestic shipping are available on the checkout page as shown in the image below.
After selecting the Domestic shipping option, the user can proceed to confirm the order.
Also, Under the Confirm Order tab, the shipping chosen by the user will display as shown in the image.
The user can confirm the order by clicking on the Confirm Order button.
Seller’s End
After placing the order, the order will be listed in the Order History tab of the seller dashboard as shown in the image below.
The Seller can select any order and can click on the View button.
After the View button is clicked, the seller can see the order details with the respective shipping as shown in the image below.
Buyer’s End
The user can click on the View button against the order.
On clicking the View button, the user can view complete order details of the order which the user places for the US zone.
That’s all for Opencart Marketplace USPS By Stamps.com. If you still have any issues, feel free to add a ticket and let us know your views on our Webkul Support System.
Current Product Version - 3.0.2.9
Supported Framework Version - 2.x.x.x, 3.x.x.x
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