Go to the Integrations page and click on UPS integration.
An integration pop-up window will open where you need to fill in the details:
UPS Access Key - to get it you have to
Go to https://www.ups.com/upsdeveloperkit section: How to get started, Step 4:
Fill in the rest of the details - UPS Account Number, UPS User ID, UPS password which you can get from your ups.com account.
The final step is to choose whether you want:
shipping taxes to be added to the order total
whether you need to subtract the discount from the order total which is imported from your sales channel
whether you need to have the shipping price added to the order total
Once selected, click on Connect:
It might be that you will see your UPS shipping prices larger in Multiorders than you have them agreed with UPS - their system doesn't always return discounted shipping prices to our platform.
But don't worry - UPS will charge you the agreed amount.