"Missing or invalid shipper number" error displays after UPS OAuth migration in SendPro Enterprise

Issue

The error message "Missing or invalid shipper number" displays when attempting to process a UPS shipment after the UPS OAuth migration in SendPro Enterprise.

Cause

This error is the result of a failure in the configuration of the UPS account on UPS.com

Resolution

Add a Payment Method to the associated UPS.com account/profile:

1. Go to UPS.com.
2. Click Log In in the upper right corner.
3. If you have a login, enter it now, otherwise, select Sign Up and create your account.
4. After Logging in, in the upper right corner select the circle icon with a letter in the middle (or the three parallel lines next to it) and then click Accounts and Payment.
5. Click Add a Payment Method menu and select Add Existing Account, it will request that you add your UPS Account Number, nickname, and postal code.
6. Verify your UPS account. The two options for this are:
   • PIN: Tied to the email that was used to create the account
   • Invoice Data: A recent invoice from UPS for billing
7. After the account is verified and added to your Payment Methods on your UPS.com profile, repeat steps 5 and 6 for each additional account.

See Applying the UPS OAuth authentication method to your UPS carrier in SendPro Enterprise for full instructions.