When you're rate shopping, it's possible that the feedback from the carrier/system is not explicit on the error.
It could be related to the following causes:
1- Incorrect/missing order information
2- Incorrect billing account setup
3- Incorrect account setup (backend)
4- Conditions changed from original setup (suspended account, changed password, etc)
WARNING: Rate Shopping is currently NOT compatible with Dangerous Goods shipping.
When processing orders this error will show as "Failed to find any rates for this order" error, sometimes with scarce additional feedback.

Depending on the case (if you're Rate Shopping Carrier vs Carrier, or Rate Shopping within a specific carrier using ECO mode), before reaching support, troubleshoot as indicated below.
If after applying the steps below does not solve the issue, reach support for additional help indicating:
- Which of the two scenarios applies to your case
- techShip Portal link
- Batch or Pick Order reference number
NOTE: Before you begin troubleshooting, make sure you check that none of the issues described here is part of your setup: Failed to find any rates for this order / Missing Carrier ID [Solution].
What you should do to troubleshoot those cases is the following:
SCENARIO A - Rate Shopping Carrier vs. Carrier
In that case, ISOLATE THE ORDER:
3. Process. That will show you the specific problem, since you're reporting to one carrier only.
5. Find the solution article related to the problem and pop it out to a new tab (you will use it later)
7. Re-import as Rate Shopping
8. Follow the steps of the solution article found in step 5 and fix the conflictive issues
9. Process successfully
SCENARIO B: Rate Shopping in ECO mode (Service vs. Service of the same Carrier)
2. Process. That will show you the specific problem, since you're reporting to one service only.
4. Find the solution article related to the problem and pop it out to a new tab (you will use it later)
5. Follow the steps of the solution article found in step 4 and fix the conflictive issues
6. Change the Service level of the order back to ECO as you did in Step 1
7. Process successfully
If you isolated the issue to DHL E-Commerce, it may be caused by the package's dimensions exceeding the carrier's limits for domestic shipments. See this article for a detailed solution: Error: "No best rate found for destination" or "Failed to find any rates for this order" [Solution].