You can connect UPS to SKULabs in two ways. We recommend the direct connection.
Option 1 (recommended): Connect UPS directly
The direct connection uses UPS's own sign-in, so you don't share your UPS password with SKULabs.
Go to Settings > Shipping > Carrier Accounts and add a carrier account. Choose UPS (SKULabs).
Enter your UPS Account number and choose your options, such as Negotiated Rates (on by default) and Enable Rates for Ground Saver (SurePost).
Click Authorize and Save.
You're sent to UPS. Sign in with a UPS.com user that has access to that account number, and approve SKULabs.
You're returned to SKULabs, and your UPS account appears in your carrier accounts.
If SKULabs later can't reach UPS, open the carrier account and click Re-authorize. See UPS Authentication Errors / Suspensions.
Option 2: Connect UPS through EasyPost
In your EasyPost account, set up a payment method, then add your UPS account on EasyPost's Carrier Accounts page using the details from a recent UPS invoice.
Copy your EasyPost Production API Key from the API Keys page. Treat it like a password.
In SKULabs, add a carrier account, choose UPS (EasyPost), and paste the key into EasyPost API Key.
Pick your UPS account from the list, give it a nickname, and click Save.
After connecting, you can choose which stores can use the account on the Carrier Accounts settings page.