Builder brands: Troubleshooting integrated shipping
Once you add the Integrated Shipping option from Shippo to your e-Commerce Constant Contact Website store, it should automatically sync and begin working. Occasionally, you may experience issues using or setting up Integrated shipping, which this article addresses.
Due to the nature of this article, some information may change or become outdated. If you need help setting up Shippo, check out: Integrated Shipping
In this article, we will discuss the following:
Common issues:
Integrated Shipping Unavailable in Checkout:
Symptoms: When placing an order on a website, the checkout page shows a flat rate instead of Integrated Shipping and does not allow the user to select the carriers.
Since flat rate shipping is the default (backup) option, when this happens, there must be something wrong with the integrated shipping setup or the actual Shippo account.
Things to check in our system:
- Ensure Weights are entered for each of the products.
- Ensure there is a Default package size entered for Manage Shippo settings.
Things to check in the Shippo Account:
- The correct carrier is set up correctly.
- Integrated Shipping Shows Unavailable in Account:
- If you see "No authorized apps" when reviewing your authorized apps in Shippo, your Constant Contact Website account has not yet been approved. See image.

- To resolve this, turn off integrated shipping from the Constant Contact Website account. Then, the customer should sign up again with their account credentials. You should now see this screen:

- If you see "No authorized apps" when reviewing your authorized apps in Shippo, your Constant Contact Website account has not yet been approved. See image.
Can't create shipping label:
Symptoms: Can't Create a Shipping Label; the option is greyed out or unavailable when selected.
- Ensure your package is not set to cross international borders, as Shippo only handles domestic shipments.
- Carrier Requirements errors may appear in your Shippo, where the guidelines for what needs to be done are defined on the carrier website or control panel. Customers should check their carrier accounts to resolve setup issues, such as dimension issues, contact issues, billing issues, or a combination of errors.
Troubleshooting common error messages:
Symptoms: Below is a list of common issues with support guides available from Shippo's website: Shippo common error messages
From the Common Errors Page, you can review articles on the following issues:
- Unable to Validate Address
- No Rates Found
- An error occurred when creating the label.
- Authentication Error
- There was an error processing your shipment.
- Default Payment Method
- The sender address must contain a first and last name or a company name.
- Info is Missing or Invalid: ContentsType. Error encountered.
- Selected Services Do Not Apply
- The minimum weight accepted per USPS customs item is 1 oz.
- 2209: ERROR: Inactive customer account
- UPS label service error: Severity: Hard, code: 120100: detail: Missing or invalid shipper number.
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