Setting up Real-Time Shipping (RTS)

Real-Time Shipping (RTS) connects your SimplePart website directly to your shipping carriers to calculate live shipping rates for your customers. Instead of using flat-rate estimates, RTS automatically retrieves rates from your carrier accounts, ensuring accurate pricing and a smoother checkout experience.

❗Note: Real-Time Shipping is required for all Subaru and Lexus dealers before your site can go live. This is an OEM requirement, not a SimplePart one.

What RTS does

RTS pulls live shipping costs from your UPS, FedEx, or USPS business accounts based on:

• Product dimensions and weights (provided by the OEM and/or MOTOR data)

• Destination ZIP code

• Carrier service levels and rates

RTS will automatically calculate at checkout and show your customer the most affordable option, plus any handling or markup fees you choose to include.

RTS helps you:

• Provide more accurate shipping estimates

• Save time by automating carrier selection

• Increase profit margins by adding a handling fee if desired

RTS is free to use and included with every SimplePart package.

What you’ll need

Before setup, make sure you have active business accounts with one or more of the following carriers:

• UPS

• FedEx

• USPS (not through Stamps.com)

Once you’re ready, we’ll provide you with a secure link to share your carrier credentials. You can safely change your password after setup is complete.

Depending on the carrier, you’ll need to provide:

FedEx

• Username

• Password

• Account number

UPS

• Username

• Password

• Account number

• Do you have a freight account? (Yes/No)

If you use Worldwide Express, UPS CampusShip, or WorldShip, you'll also provide:

• UPS invoice number

• Invoice date

• Invoice total or amount due (not required for CampusShip)

• UPS control ID

• UPS shipper number (account ID)

You can usually get this information from your shipping representative and your most recent invoice. 

How to get started

1. Fill out the RTS setup form
   Once submitted, we’ll be notified automatically.

2. Provide your carrier information
   We’ll send you a secure link to share your credentials safely.

3. Our team completes the setup
   A member of our Implementation team will configure your RTS integration and confirm once it’s live.

⚠️ Important notes

• RTS relies on product weights and dimensions from the OEM or MOTOR database to calculate accurate rates.

  • If an item doesn’t have this data, your website will fall back to your preset Shipping Rates Table.

  • You can still contact the customer if additional shipping costs apply.

• RTS is currently available only for U.S. dealers.

• If your carrier requires additional setup details (such as third-party integration permissions), we’ll let you know during setup.

Need help?

Our in-house Client Services team is available Monday-Friday, 8 a.m. to 8 p.m. EST to help you with any questions or issues. You can reach us in the following ways:

👉 Submit a request through this support form

📞 Call us at 1 [phone]

📧 Email us at [e-mail]

We’re ready to help you get the most out of your SimplePart experience!