Stamps.com

Details about the ShipStation Stamps.com integration: Requirements, how to connect, features, cubic pricing, the GAP program, notes, and troubleshooting.

Stamps.com is a USPS postage reseller that grants access to all standard services offered by USPS, as well as additional international shipping options through GlobalPost.

US-based ShipStation users can take advantage of a free Stamps.com account, which will allow you to create domestic and international USPS shipping labels at a discounted rate compared to USPS retail services.

Stamps.com Requirements

Connection Requirements:

  • ShipStation accounts come with a Stamps.com account so you can get rates right away. You'll be prompted to enter your billing information the first time you create a Stamps.com label.

  • If you want to connect an additional Stamps.com account to ShipStation, you'll need your Stamps.com account username and password.

  • If you have not yet added a Stamps.com account, you can create the account right in ShipStation. When signing up for a new Stamps.com account through ShipStation, the account requires verification before you can start creating labels. ShipStation sends the verification code via SMS to your phone during the sign up process.

Connect a Stamps.com account to ShipStation

If you currently have an active Stamps.com account you want to connect to ShipStation, or if you would like to create a new one, follow these steps:

  1. Select the Stamps.com tile and click Connect.

    USPS by Stamps.com logo
  2. Choose either Set up a new Stamps.com account or I already have a Stamps.com account depending on which applies.

    • For existing accounts: Select the option I already have a Stamps.com account, then click Next to enter your Stamps.com Username and Password. Enter an Account Nickname to identify the carrier account in ShipStation. Click Connect.

    • For new accounts: Select the option to set up a new account and click Next. Enter your Billing and Payment information and click Create Free Account. You will be prompted to enter a phone number for 2-Step Authentication. Enter your phone number and click Next. You should receive a verification code via SMS to the phone number you entered. Enter the code and click Verify.

      STMP_SMS_1.png
      STMP_SMS_2.png

Once added successfully, you'll see your Stamps.com account appear in your Carriers & Fulfillments list. You can then add funds to your balance and begin creating labels.

Failed 2-step Authentication

You will not be able to add funds or create labels on new Stamps.com accounts that have not passed the 2-step authentication process.

If you experience issues with this authentication process, contact Stamps.com Security Support at 866-634-4708.

Available Features for Stamps.com Integration

ShipStation's integration with Stamps.com supports the following standard features:

Common ShipStation Features

Domestic Services

USPS First Class Mail

USPS Media Mail

USPS Parcel Select Ground*

USPS Priority Mail

USPS Priority Mail Express

International Services

USPS First Class Mail Int'l

USPS Priority Mail Int'l

USPS Priority Mail Express Int'l

Confirmation Options

No Confirmation

Delivery

Signature

Adult Signature

Package Options

Package

Custom Packages

Flat Rate Envelope

Flat Rate Legal Envelope

Flat Rate Padded Envelope

Large Envelope or Flat

Large Flat Rate Box

Large Package (any side > 12")

Letter

Medium Flat Rate Box

Regional Rate Box A

Regional Rate Box B

Small Flat Rate Box

Thick Envelope

*Parcel Select Lightweight Labels

If you have Parcel Select Lightweight enabled, selecting Parcel Select Ground and Package for anything under 16 oz will automatically print a Parcel Select Lightweight label.

Contact Stamps.com shipper support to enable it on your ShipStation account (subject to USPS approval). Additional fees and guidelines from the postage provider may apply.

To learn more about USPS Shipping services, see USPS Domestic Services and USPS International Service pages.

Stamps.com Additional Details

ShipStation's integration to Stamps.com allows for the following additional features:

Feature

Description

Discounted Rates

The free Stamps.com account included with ShipStation comes pre-loaded with access to discounted rates, including cubic pricing!

Note

You'll only have access to these rates when using the free Stamps.com account. If you connected a personal Stamps.com account, ShipStation will instead reflect whatever rates are loaded into that account.

GlobalPost Consolidation Service

The free Stamps.com account included with ShipStation qualifies for GlobalPost consolidation services through Stamps.com. See our section on GlobalPost for more information.

Scheduled Pickups

After creating Stamps.com shipping labels in ShipStation, you can schedule a pickup for the next day through the Shipments tab.

Manage funds through ShipStation

Add funds to your Stamps.com account through ShipStation, using the credit card you have on file with Stamps.com. You can also set up auto-funding and always have funds available to create shipping labels.

USPS SCAN Forms

Use ShipStation to generate USPS SCAN forms for your Stamps.com shipping labels.

Other Shipping Options available for Stamps.com shipments.

The following options will be available to select in the Other Shipping Options panel in ShipStation when a USPS service is selected for the order:

  • This order is non-machinable

  • Do not notify marketplace when shipped

  • Include a return label with the outgoing shipping label

  • Print postage on the shipping label for this order

    Displaying Postage Costs Limitations

    Stamps.com will only display postage costs on labels for personal Stamps.com accounts that do not have access to discounted rates. It is not available to Stamps.com accounts on the discounted rate plan offered to ShipStation users.

    However, to meet USPS requirements ShipStation will always display the postage for First Class Mail with the Large Envelope/Flat package type.

For a full list of the Other Shipping Options and which carriers support them, review our Other Shipping Options by Carrier article.

The carrier integration can be used to create domestic shipping labels.

The carrier integration can be used to create international shipping labels.

ShipStation will submit international customs information electronically to the carrier.

The carrier integration can be used to create domestic return labels.

ShipStation will display estimated shipping rates for the carrier based on the connected account information and shipment details.

Additional carrier insurance can be purchased through ShipStation.

Shipping labels created for this carrier will include a tracking number that can be used to view the shipment status on the carrier's tracking website. Tracking may not be available for all shipping services.

When tracking is available, ShipStation will automatically track the shipment status and update the tracking status on the Shipments tab. This feature allows for other advanced ShipStation features like delayed notifications and the Branded Tracking Page.

ShipStation can perform an End of Day process for the carrier and creates an End of Day PDF file that can be printed and provided to the carrier. The End of Day process can be mandatory or optional, based on the carrier and your account with them. The file may or may not be submitted electronically, see End of Day (Electronic).

ShipStation can print the store's logo on shipping labels created for this carrier. Label branding may not be available for all shipping services.

ShipStation can include information that will be displayed on the label as a label message. Label messages may not be available for all shipping services.

The carrier integration can be used to create multi-package shipments, where multiple individual packages are linked together into a single shipment record with a master tracking number.

You can connect this carrier integration to ShipStation multiple times using different account information, and choose which account will be used to create each shipment.

Access Stamps Account Settings & Reports

ShipStation provides quick-link access to your connected Stamps.com account settings and reports pages.

You may want to access your Stamps.com account to ensure your account is set to the correct plan type, update your payment method, or change your account password. Or, you may want to view your Stamps account transaction reports to view any billing adjustments that have been applied.

To access your Stamps.com settings in ShipStation:

  1. Click the settings icon ICON_SET_SHP_SCSsettings.png next to your connected Stamps.com account.

This will open the Stamps.com Settings pop-up in ShipStation. Clicking the Account Settings option will open your Stamps.com account settings in a new tab. Clicking the Reports option will open your Stamps.com account reports page in a new tab.

SET_SHP_StampsAccount-Reports_MRK.png

View Stamps.com Account Plan

To see which Stamps.com plan your account is using, click the Account Settings link. This will open the Stamps account settings in a new tab in your browser.

Choose Change/Cancel Plan. If your current plan is the Pro Plan, then you currently have the correct plan type for the Stamps account connected to ShipStation. The Pro Plan has no monthly fee, but only one Stamps.com account per ShipStation account can be a Pro Plan.

Stamps-Settings_ProPlan.png

View Stamps.com Account Transaction Report

To view your Stamps.com account transactions, click the Reports link. This will open the Stamps account Reports page in a new tab in your browser.

Choose Balances from the left-hand sidebar and set the Report Type to Transactions.

Stamps.com Reports > Balances screen with Report type set to Transactions

Stamps.com Cubic Pricing in ShipStation

Stamps.com cubic pricing is available by default for all ShipStation users creating labels in ShipStation with their Stamps.com account.

Cubic rates are ideal for small, heavy packages since the pricing is based on the volume of the package instead of the weight. Any package that measures 0.50 cubic feet or less and is 20 pounds or less is eligible.

To receive cubic rates in ShipStation:

  1. Choose a USPS domestic Priority service.

  2. Choose a package type of Package.

  3. Enter the package weight & dimensions.

ShipStation will automatically apply the cubic rate whenever it's cheaper than the priority rate. For more details on Stamps.com cubic rates, please contact your Stamps.com account representative.

Cubic Pricing for Softpacks

USPS offers a special cubic rate option for a package type called Softpack or Polybag. These package types are not yet available in ShipStation, but we plan to make them available in the future.

If you wish to ship using Softpacks, please contact ShipStation support to enable this feature for you.

Once enabled, the following steps will allow you to view the appropriate cubic rate for Softpack or Polybag shipments.

Softpack Pricing Requirements

  • The mail piece must be 20 lbs or less.

  • The longest dimension cannot exceed 18 inches.

  • Must be .50 cubic feet or less. The following list provides Length + Width for each tier of Cubic Softpack Pricing:

    • 0.1 - Length + Width between 0" and 21"

    • 0.2 - Length + Width between 21" and 27"

    • 0.3 - Length + Width between 27" and 31"

    • 0.4 - Length + Width between 31" and 34"

    • 0.5 - Length + Width between 34" and 36"

  • May not be in rolls or tubes.

To View Appropriate Rates

  1. Select your order from the Orders grid and choose USPS Priority Mail as the shipping service.

  2. Set packaging type to Large Envelope or Flat.

  3. Enter the weight of the shipment.

  4. Enter the length and width, but leave the height field blank.

This will fetch the tiered cubic rate for the product, should it meet the requirements for cubic rates.

Global Advantage Program Labels

The Global Advantage Program (GAP) is a Stamps.com program that makes international shipping much more economical. Your Stamps.com account is auto-enrolled in the GAP program, so you don’t need to take any action to enable it.

The important thing to note about GAP labels is that the ship to address on the label is a domestic address. This is because your shipment goes to a GlobalPost hub where it is then processed and forwarded to its final destination.

Benefits of the GAP program include discounted rates, free insurance coverage up to $100 for First Class International and $200 for Priority, and electronic customs submission.

Review the details on the Stamps.com Global Advantage Program page for more details about this program.

ShipStation automatically creates a GAP label for an international order under the following conditions:

  1. The destination address for the order is an international address.

  2. You've selected one of the following USPS services:

    • First Class Mail International

    • Priority Mail International

    • Priority Mail Express International

The GAP label should look similar to this:

USPS Global Advantage Program Label example with scannable barcode

Your packages with GAP labels will get shipped to the domestic sorting facility, where they'll be relabeled and forwarded on to their final destination.

GAP SmartSaver Labels

If you ship 5 or more international shipments a day, the Global Advantage Program offers further discounts when you consolidate your daily individual packages into one large package. Stamps calls this their SmartSaver service.

To use this service, you must contact Stamps.com to see if you qualify and have them enable it for you.

To prepare a consolidated shipment:

  1. Create international USPS labels for each shipment and label them like you normally would.

  2. Put the individual packages into a single larger box.

  3. Log in to your Stamps.com account to print the label for the larger container (you will not be charged a fee for this label).

    Follow the instructions in How to Prepare and Print Global Advantage Program Container Shipping Labels to create this label.

  4. Put the label on the larger container and ship via your local post office.

GAP vs SmartSaver Labels

GAP labels always have the domestic sorting facility address as the ship to address

Once you enable the SmartSaver service with Stamps, all international labels will be a part of this service. You will no longer be able to print GAP single labels.

Additional Details about the Stamps.com Integration

Remember these points about ShipStation's integration with Stamps.com:

  • USPS does not support Signature or Adult Signature confirmation for shipments to international addresses.

  • USPS SCAN forms must be created before 9 PM local time.

  • Label Messages are not available for international shipments, or domestic First Class Mail shipments using the Letter package type.

  • Due to the discounted rates ShipStation users receive, it's not possible to show postage cost on Stamps.com shipping labels.

  • All Stamps.com shipping labels are prepaid. In order to receive a refund for unused postage, void the shipping label electronically within 28 days.

  • Stamps.com has a postage-purchase minimum of $10 for a single transaction.

  • Each Stamps.com account can hold up to a maximum of $10,000.00 in available funds.

  • To report a USPS from ShipStation lost shipment, please contact Stamps.com Shipper Support directly:

    • Stamps.com Shipper Support Contact Information

      • Phone: (877) 782-6739 (option 1)

      • Hours: Monday - Friday, 6 AM to 6 PM, Pacific Time Zone ( PT) 

      • Email: ShipperSupport@Stamps.com

Stamps.com Troubleshooting Tips

Here are some common issues, potential causes, and troubleshooting tips.

Issue

How to troubleshoot or resolve

First Class Mail International (FCMI) tracking numbers not sent to customers or selling channel

The tracking number provided for FCMI shipments is not always fully trackable, and will often not provide any additional tracking details beyond the shipment leaving the country.

For this reason, FCMI are considered non-trackable and will not be include in marketplace notifications by default.

To include FCMI tracking numbers in marketplace notifications, go to Settings > Shipping > International Settings, and enable the option Send non-trackable Tracking Number to Marketplaces at the bottom of the page.

Despite the wording of the text, this setting also applies to email notifications sent to customers, as well.

Error: "Authentication Failed" when attempting to get rates or create shipping labels

This error message will occur if you've updated the password for your Stamps.com account. It means that ShipStation no longer has the proper password for your account and is unable to communicate successfully with Stamps.com.

To resolve this error:

  1. Go to Settings > Shipping > Carriers & Fulfillment.

  2. Click the Settings link for your Stamps.com account.

  3. Click the Reauthorize button then enter your new Stamps.com password.

  4. Click Confirm when you are done.

If you are still unable to use your Stamps.com account, contact Stamps support at (888) 434-0055 for further assistance.

Credit Card Declined

To update the credit card used for your Stamps.com account:

  1. Go to Settings > Shipping > Carriers & Fulfillment.

  2. Click the Settings link for your Stamps account.

  3. Click Account Settings.

    This will open your Stamps account in a new tab.

  4. Choose Payment Methods and select the card you wish to update.

  5. Click Edit. Enter your new card details and save.

You can then go back to ShipStation, refresh your screen, and attempt to make your purchase again.

If you are unable to access the Stamps.com account page, you must contact the Stamps.com Trust and Safety team for assistance at (866) 634-4708.

Locked out of Stamps.com account and need to reset account password or update billing details.

If you are locked out of your Stamps.com account or unable to purchase postage on your account, you must contact the Stamps.com Trust and Safety team for assistance at (866) 634-4708.

They will verify you and be able to release your account, help you reset your Stamps.com account password, or update your billing details.

My Priority Mail Express shipment arrived late, how do I get a refund for the late delivery?

You will need to contact Stamps.com directly to claim a refund for late delivery.

Email shippersupport@stamps.com with the tracking number(s) and created date(s) for the shipment(s). Stamps.com will evaluate the claim and respond within 24 hours.

Invalid SOAP message due to XML Schema validation failure.....The actual length is less than the MinLength value.

This error may occur when attempting to get a rate for international orders shipping to a country that does not use postal codes.

ORD_ShippingSB_SOAPerror_Intl.png

Enter 00000 in the Ship To address Postal Code field to receive a rate and create the label successfully.

Domestic shipping label when using the First Class Mail International (FCMI) service and the Large Envelope or Flat package type.

Starting in early 2018, USPS requires all "Merchandise" shipped using FCMI to use the Package package type. The Large Envelope or Flat package type is only valid if the content type for the shipment is "Documents."

Stamps.com allows their users to use the Large Envelope or Flat package type for any kind of FCMI shipment, but in order to do so the shipment must go through GlobalPost, an international consolidation service. The domestic shipping label you received is used to ship your package to the GlobalPost sorting facility. Once received, GlobalPost will relabel the shipment with the international label and any necessary customs information, and send the package on its way to its final destination.

Please review our section on GlobalPost for more details.

Error: Account is set to a closed plan

This means the connected account has been either closed or removed from the ShipStation Pro plan. To resolve, do one of the following:

  1. Remove this closed Stamps.com account and sign up for a new Stamps.com trial account. This will immediately give you the ShipStation Pro plan with the appropriate rates (see attached table at bottom for rate structure).

  2. Contact Stamps.com's customer support number at 1 (855) 860-7867 and ask to have your Stamps.com account changed back to a ShipStation Pro plan.

Error when closing End of Day: An unexpected error occurred while creating the SCAN form. The size necessary to buffer the XML content exceeded the buffer quota.

This means there is an unknown error on the Stamps side when attempting to close the SCAN form in ShipStation.

Solution: Close the SCAN form directly in your Stamps.com account.

To access your SCAN form in your Stamps account:

  1. Go to Settings > Shipping > Carriers & Fulfillment.

  2. Click Settings next to your Stamps account.

  3. Click SCAN Form.

    This will open a new tab that shows your applicable transactions and your SCAN history.

Close the form and print from here.

Error when closing End of Day: One or more of these packages have already been scanned by USPS

End of Day forms can only be closed for orders that were created on that date, for that date. You will not be able to close an End of Day form for shipments that have a ship date in the past. In this case, the packages must be individually scanned by USPS.

You can change your shipping cut-off time in Settings > Printing > Printing Setup > Document Options (for Labels) so that labels created after a certain time of day will automatically have a ship date of the following day, which means they will also be on the following day's SCAN form.

ERROR: First and Last Name, with two chars each or Full Name with two char First and Last Name or Company Name with two chars is required for both sender and recipient. Exception with code 0x00650109; module 101, category 1, item 9…

For International Shipments, USPS requires a first name and last name separated by a space for all Ship From locations.

Solution: For all International shipments from all Ship From locations, ensure that there is a first name and last name separated by a space in ShipStation's Name field.

The carrier integration can be used to create domestic shipping labels.

The carrier integration can be used to create international shipping labels.

ShipStation will submit international customs information electronically to the carrier.

The carrier integration can be used to create domestic return labels.

ShipStation will display estimated shipping rates for the carrier based on the connected account information and shipment details.

Additional carrier insurance can be purchased through ShipStation.

Shipping labels created for this carrier will include a tracking number that can be used to view the shipment status on the carrier's tracking website. Tracking may not be available for all shipping services.

When tracking is available, ShipStation will automatically track the shipment status and update the tracking status on the Shipments tab. This feature allows for other advanced ShipStation features like delayed notifications and the Branded Tracking Page.

ShipStation can perform an End of Day process for the carrier and creates an End of Day PDF file that can be printed and provided to the carrier. The End of Day process can be mandatory or optional, based on the carrier and your account with them. The file may or may not be submitted electronically, see End of Day (Electronic).

ShipStation can print the store's logo on shipping labels created for this carrier. Label branding may not be available for all shipping services.

ShipStation can include information that will be displayed on the label as a label message. Label messages may not be available for all shipping services.

The carrier integration can be used to create multi-package shipments, where multiple individual packages are linked together into a single shipment record with a master tracking number.

You can connect this carrier integration to ShipStation multiple times using different account information, and choose which account will be used to create each shipment.