UPS Shipping Method

UPS Shipping Method allows you to get shipping rates from the UPS API. It requires that your server uses SimpleXML. The extension primarily works with measurements in Inches (in) and weight in Pounds (lbs), but other units can be converted automatically. Returned rates’ currency is based on the origin country in the shipping instance setting. UPS can calculate quotes for both domestic and international parcels.

You can purchase shipping labels directly from UPS or use a label printing extension to handle that.


This extension does not handle freight shipping, and there is a weight limit of 150 lbs per individual package. The API and the built-in box packer require that non-virtual products have weights and dimensions set. More at: Adding Shipping Dimensions and Weights to Products


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  1. Purchase the product from
  2. Download the ZIP file from your dashboard
  3. Go to Plugins > Add New > Upload and select the ZIP file you just downloaded
  4. Click Install Now and then Activate.
  5. Read on to learn how to set up and configure the product.

More information at: Install and Activate Plugins/Extensions.

Connecting Your UPS Account

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Using the new REST API (OAuth 2.0 security model)

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  1. Head to
  2. Click the Create Application button.
    • If you aren’t already logged in, log in to your existing account or create a new account. After logging in or signing up, you will be redirected away from the developer site. You’ll need to go back to and click Create Application again (as described above).
  3. Click the Add Apps link.
  4. A modal will be displayed. Select I want to integrate UPS shipping capabilities to my business and the UPS account you want to associate with the app. Then click Next.
  5. Fill out the contact details and click Next.
  6. Enter a name for your app (e.g. UPS Shipping Method for WooCommerce).
  7. Search for and add the Authorization (OAuth), Rating, and Address Validation products, then click Save.
  8. Copy the Client ID and Client Secret keys. They’ll be required in the next step.
  9. Logged into your site head to WooCommerce > Settings > Shipping > UPS and input the following settings:
    • UPS API type – REST.
    • UPS Account Number – Sent to you after signup.
    • UPS Client ID – Displayed on the UPS website in step 9).
    • UPS Client Secret – Displayed on the UPS website in step 9).
    • Customer Classification – Determines what rates are returned. Note that Retail Rates will match the online calculator.
    • Debug Mode – Enable/disable debug mode to show debugging information on your cart/checkout.
  10. Click Save changes and proceed to the Configuration section below to continue setting up the extension.

Using the XML API (legacy; for reference only)

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Using the XML API (legacy; for reference only)


These instructions are only reference for merchants already using UPS Shipping Method. The REST API (described above) offers better performance and is the only connection option available in the UPS plugin from version 3.5.8+.

Additionally, UPS stopped issuing API keys for the XML API on June 5, 2023 and that connection will no longer work after August 5, 2024. The REST API (OAuth 2.0) connection will be required after that date.

(The original deprecation date was June 3, 2024 but it was extended to August 5, 2024 by UPS.)

  1. To create a UPS account and obtain your UPS API credentials, sign up at UPS Developer Kit.
  2. After signing in, in the Access and Administration section select Manage Access Keys, then Request New Access Key.
  1. Fill out the first two form fields as follows:
  • I need an access key because: I was informed by a software vendor that I need to obtain an access key to share with them
  • Software/Vendor Name: WooCommerce
  1. Continue filling out the rest of the form.
  2. After successfully signing up, please go to WooCommerce > Settings > Shipping > UPS and fill out the following fields and save changes:
    • UPS API type – XML (legacy).
    • UPS Account Number – Sent to you after signup.
    • UPS User ID – Set by you during signup.
    • UPS Password – Set by you during signup.
    • UPS Access Key – Sent to you after signup.
    • Customer Classification – Determines what rates are returned. Note that Retail Rates will match the online calculator.
    • Debug Mode – Enable/disable debug mode to show debugging information on your cart/checkout.
  3. Click Save changes and proceed to the Configuration section below to continue setting up the extension.


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This shipping method has to be added to a Shipping zone. If you haven’t configured your Shipping zones yet, please check our Setting up Shipping Zones guide before proceeding.
  1. Go to WooCommerce > Settings > Shipping > Shipping zones.

2. Click the Edit button on the shipping zone where you want to offer this method.

3. Inside the shipping zone, click the Add shipping method button.

4. Then, select the shipping method and click the Continue button.

Click the Edit button on the right side of the Shipping methods table to configure the settings.

Method & Origin Settings

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  • Method Title – Name the shipping method. This is visible to customers.
  • Origin City – Enter city you are sending from.
  • Origin Postcode – Set to the postcode from where you ship. It is sent to the UPS API.
  • Origin Country – Set to the country from where you ship. It is sent to the UPS API.

Services and Packaging

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  • Services – Choose to rename and/or rearrange the order of UPS shipping rates.
  • Offer Rates – Select whether to display all rates available or only the cheapest.
  • Negotiated Rates – Enable negotiated rates or not.
  • Delivery Confirmation – Optionally you may charge customers for delivery confirmation. This just adds the specified amount to the returned rates.
  • Parcel Packing Method – See below.
  • UPS Packaging – You can select from a built-in list of standard UPS packaging to use.
  • Custom Boxes – Here you can add custom box sizes to pack into.

Advanced Options

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  • Origin Address – Sometimes you may need to enter the address for the sender/origin.
  • Residential – Choose whether to indicate deliveries as residential or commercial addresses.
    • Users are permitted to enter PO Boxes as a shipping address, even though UPS does not allow it.
  • Destination Address Validation – Choose whether to validate the destination address at checkout.
    • If enabled, users will only be able to checkout with a UPS validated address.
    • Requires the Address Validation service enabled within your UPS app as outlined in the “Connecting Your UPS Account” section.
  • Insured value – Request Insurance to be included in UPS rates.
  • Fallback – Enter a fallback amount for shipping, if no rates are found.
  • Weight/Dimension Units – Only change this if you’re getting the “This measurement system is not valid for the selected country method.”


The UPS shipping extension will calculate rates for all products in the cart. It doesn’t exclude products based on shipping classes.

Parcel Packing Methods

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There are two packing methods with UPS, and each affects the parcels you send to the API.

Pack items individually (Default)

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Each item in your cart (non-virtual) is sent to the UPS API. Quotes for all items are combined to calculate the final cost. Only the weight is required, but also entering product dimensions produces a more accurate quote. For even more accuracy, we recommend the box packer method.

To use this method, add a new product then scroll down to Product Data > Shipping to enter the product dimensions.

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Using this method, you create your own custom box sizes in UPS Settings. The extension uses the weight/dimensions of products added to the cart, filling the custom box size from smallest to largest based on volume and size, then sends the number of boxes/size to the UPS API for a shipping estimate. Both product weight and dimensions are needed for this option to accurately calculate what boxes are needed.

Selecting this option you must follow the steps listed below for UPS Packaging or Custom Box Packing for this method to work.

UPS Packaging

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UPS offers standard boxes for shipping. UPS Packaging:

UPS Packaging Settings

Start typing the package you want to include, and it auto-populates the field for you.


If you choose Pack into boxes with weights and dimensions (Recommended) but have not chosen any UPS Packaging, nor defined any custom boxes (as explained below), the plugin displays the error message: “UPS is enabled, and Parcel Packing Method is set to ‘Pack into boxes’, but no UPS Packaging is selected and there are no custom boxes defined. Items will be packed individually.”

Custom Box-Packing

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The box packer included with this shipping method groups items into boxes that you define by height, width, length, weight, and max-weight. The packing is mainly volume based, but also considers item sizes.


The box packer is volume based. In most cases, this provides good results but is never as accurate as a real person packing a box (see BIN Packing Problem). Therefore, it is important to understand that packing results are as accurate as they can be, and any anomalies should be acceptable.

Setting up box sizes

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  1. Go to: WooCommerce > Settings > Shipping.
  2. Select your Shipping Zone containing UPS, then click UPS
  3. Scroll down to Custom Boxes and select Add Box to set up box dimensions:
Box Settings
Box Settings

Outer dimensions are used for parcel dimensions and are passed to the API.

Inner dimensions are used for packing, and items should fit within these.

Box weight is the weight of the actual box, and is added to the weight of contents.

Max weight is the maximum weight your box can hold. This includes contents weight and box weight. (Note: This value should never be set to 0 , as that will result in that box not being used due to the Max Weight limitation being met before any items are packed inside.)

How the calculation works

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The packer:

  1. Finds boxes that fit items being packed (uses H x W x D).
  2. Packs all fitting items into boxes (using volume).
  3. Uses the smallest box that fits 100% of items *or* uses the highest % packed box, and then passes unpacked items back and repeats the process.
  4. Packs unpackable items alone, using item dimensions.
  5. Returns all packed boxes.

Handling Fees

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To add handling fees to shipping calculations, you can use a Price Adjustment column in the Services section. Each UPS service can be increased or decreased (by adding the “-” sign) separately, using price adjustment columns in the row.

Use the Price Adjustment ($) column to add a flat amount to the shipping quote. In this example, the 3-Day Select and Ground shipping methods are increased by $3.50.

Use the Price Adjustment (%) to increase the shipping quote by a percentage. In this example, the 3-Day Select and Ground shipping methods are increased by 1% of the quote returned by UPS.

Customer Usage

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Customers get quotes, after inputting their address, from two places:

  • Cart page – via the shipping calculator
  • Checkout page – via the shipping and billing forms

Rates can be selected by customers as normal.


Available Shipping Services for UPS Extension

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These services are included with the UPS Shipping extension:


  • 3-Day Select
  • Ground
  • 2nd Day Air
  • 2nd Day Air AM
  • Next Day Air
  • Next Day Air Saver
  • Next Day Air Early AM
  • Simple Rate
  • SurePost Less than 1LB
  • SurePost 1LB or greater
  • SurePost BPM
  • SurePost Media Mail


  • Standard
  • Worldwide Express
  • Worldwide Express Plus
  • Worldwide Expedited Standard
  • Worldwide Saver


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I dropship items. Can I use multiple origin zip codes?

Yes. Multiple UPS methods in the same zone with different origin addresses will return the appropriate rates for each method. Multiple API requests are made and each origin address is used.

Does this create shipping labels and tracking codes?

No it does not. It provides the integration between UPS and WooCommerce, so you can calculate shipping rates for customers and collect the correct amount of payment in checkout.

You get shipping labels and tracking numbers directly from UPS or can buy a different plugin to handle that for you.

Rates are not in the correct currency

UPS will use the currency that is enabled on your account. So if your site uses a different currency then the one which is set on the account, the rates won’t be returned. If the debug setting is enabled this will be indicated with a warning like:
[UPS] Rate for Standard (UPS) is in USD but store currency is EUR.

If you need to convert these rates to the correct currency we would suggest using the Multi Currency extension and setting up a conversion rate for both the account currency and the store currency.


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No rates returned/no rates available

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  • Confirm that your API credentials are correct.
  • Enable development mode, or turn on WP_DEBUG to see debugging information on the cart page. This often reveals the issue.
  • Check that your products have sizes and weights set – without this, the calculation cannot be performed.

“Invalid Authentication Information” error

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If you see Invalid Authentication Information in the “UPS RESPONSE” section of the Debug output on your site, there is a problem with the API credentials or the App in your UPS account dashboard. To resolve this error, do the following:

  1. Log in to and click on “My Apps”. Then, click on the link in the “App Name” column.
  2. Confirm that your App has “Rating” and “Authorization ( OAuth)” listed in the Product In Use column. If either of those are not listed there, click the “Add Products” button. Next, click the + icon on the right for any missing products and save the changes.
  3. Confirm that both the “Rating” and “Authorization ( OAuth)” products show “Approved” in the Status column when viewing the App info screen (described in Step 1). If any products show as “Pending“, try removing them with the “Remove” link on the right and re-adding them via the “Add Products” button (as described above).
  4. Even if your API credentials show as “Authenticated” on the UPS plugin settings page on your site (WooCommerce > Settings > Shipping > UPS), delete the information in the UPS Account Number, UPS Client ID, and UPS Client Secret fields, making sure that there aren’t any ‘spaces’ or any other characters in those fields and they are completely blank. Then, on the App Info/Credentials page described in Step 1, copy the Billing Account number and paste it into the UPS Account Number field in the UPS plugin settings on your site. Next, copy the Client ID in the App and paste it into the UPS Client ID field in the UPS plugin settings on your site. Finally, copy the Client Secret in the App and paste it into the UPS Client Secret field in the UPS plugin settings on your site and save the changes. (Note: The “Client ID” and “Client Secret” info is not visible in the App by default but you can click on the ‘eye’ icon to reveal that info and you can click the ‘clipboard’ icon to copy it.)
  5. Once those steps have been completed, do another test on the front end of your site with Debug enabled to see if the error has been resolved. If you continue to see Invalid Authentication Information in the “UPS RESPONSE”, reach out to the UPS Support team and let them know that you are receiving this error.


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If you would like to remove UPS as a shipping option for some shipping classes you can use the WooCommerce Conditional Shipping and Payments extension.

Or you can use code to do this. You can add the following code to your functions.php. You need to change shipping classes used on the 14th line:

 * Check the cart for specific classes, remove UPS Shipping method if they are present
 * REMOVE THE TOP <?php if there is no ?> before (or you have an error after adding this)
 * Add the code to your theme functions.php file
add_filter( 'woocommerce_package_rates', 'unset_ups_shipping_method' , 10, 2 );
function unset_ups_shipping_method( $rates, $package ) {
    // Setup an array of shipping classes that do not allow UPS Shipping (@todo change this)
    $shippingclass_array = array( 'no-ups' );
     * loop through the cart looking for the products in the array above
     * and unset the Free shipping methods as necessary
    foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
        $shipping_class = get_the_terms( $values['product_id'], 'product_shipping_class' );

        if ( isset( $shipping_class[0]->slug ) && in_array( $shipping_class[0]->slug, $shippingclass_array ) ) {
             * Unset the shipping methods here
            unset( $rates['ups:01'] );
            unset( $rates['ups:02'] );
            unset( $rates['ups:03'] );
            unset( $rates['ups:04'] );
            unset( $rates['ups:05'] );
            unset( $rates['ups:06'] );
            unset( $rates['ups:07'] );
            unset( $rates['ups:08'] );
            unset( $rates['ups:09'] );
            unset( $rates['ups:10'] );
            unset( $rates['ups:11'] );
            unset( $rates['ups:12'] );
            unset( $rates['ups:13'] );
            unset( $rates['ups:14'] );
            unset( $rates['ups:15'] );
            // The rates have been removed, no point in carrying on
    // Return what's left of the $rates array
    return $rates;

Questions and Support

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Something missing from this documentation? Do you still have questions and need assistance?

  • Have a question about a specific extension or theme you’d like to purchase? Click here.
  • Already purchased and need some assistance? Get in touch with a Happiness Engineer via the Support page and choose this extension name from the “I need help with” dropdown