TypeError when loading UPS shipping rates if no allowed shipping methods selected

[NicholasRoge]

Preconditions (*)

1. Magento version 2.4.3
2. Admin - Stores - Configuration - Sales - Shipping Methods - UPS shipping method is set up with no "Allowed Methods" selected
3. cache clear
4. Front end - Login as customer - Add a product to Cart
5. Proceed to checkout - Enter Shipping Address Issue: No other shipping methods are displayed and error is displayed on UI. Unable to proceed with payment.

   Steps to reproduce (*)

6. Add test simple product to cart
7. Proceed to checkout
8. Enter shipping address

Expected result (*)

My expectation is that the exception should never occur in the first place and the carrier should return no rates if there are no allowed shipping methods

Actual result (*)

Actual result is that all rates fail to load and no error is logged to indicate that there is an issue.

If you attempt to load rates an RMA request however, the following error which is caused by the issue in question is logged:

[2021-10-22 20:57:42] report.CRITICAL: Type Error occurred when creating object: Magento\Rma\Block\Adminhtml\Rma\Edit\Tab\General\Shipping\Methods, explode() expects parameter 2 to be string, null given [] []
[2021-10-22 20:57:42] report.CRITICAL: Type Error occurred when creating object: Magento\Rma\Block\Adminhtml\Rma\Edit\Tab\General\Shipping\Methods, explode() expects parameter 2 to be string, null given [] []
[2021-10-22 20:57:42] report.CRITICAL: Error: Call to a member function toHtml() on bool in /var/www/html/vendor/magento/module-rma/Controller/Adminhtml/Rma/ShowShippingMethods.php:52
Stack trace:
#0 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods->execute()
#1 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->___callParent()
#2 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->Magento\Framework\Interception\{closure}()
#3 /var/www/html/generated/code/Magento/Rma/Controller/Adminhtml/Rma/ShowShippingMethods/Interceptor.php(23): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->___callPlugins()
#4 /var/www/html/vendor/magento/framework/App/Action/Action.php(111): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->execute()
#5 /var/www/html/vendor/magento/module-backend/App/AbstractAction.php(151): Magento\Framework\App\Action\Action->dispatch()
#6 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Backend\App\AbstractAction->dispatch()
#7 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->___callParent()
#8 /var/www/html/vendor/magento/module-backend/App/Action/Plugin/Authentication.php(143): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->Magento\Framework\Interception\{closure}()
#9 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(135): Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch()
#10 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->Magento\Framework\Interception\{closure}()
#11 /var/www/html/generated/code/Magento/Rma/Controller/Adminhtml/Rma/ShowShippingMethods/Interceptor.php(32): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->___callPlugins()
#12 /var/www/html/vendor/magento/framework/App/FrontController.php(245): Magento\Rma\Controller\Adminhtml\Rma\ShowShippingMethods\Interceptor->dispatch()
#13 /var/www/html/vendor/magento/framework/App/FrontController.php(212): Magento\Framework\App\FrontController->getActionResponse()
#14 /var/www/html/vendor/magento/framework/App/FrontController.php(147): Magento\Framework\App\FrontController->processRequest()
#15 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\FrontController->dispatch()
#16 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\App\FrontController\Interceptor->___callParent()
#17 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}()
#18 /var/www/html/generated/code/Magento/Framework/App/FrontController/Interceptor.php(23): Magento\Framework\App\FrontController\Interceptor->___callPlugins()
#19 /var/www/html/vendor/magento/framework/App/Http.php(116): Magento\Framework\App\FrontController\Interceptor->dispatch()
#20 /var/www/html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http->launch()
#21 /var/www/html/pub/index.php(29): Magento\Framework\App\Bootstrap->run()
#22 {main} [] []

---

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• [ ] Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• [ ] Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• [x] Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• [ ] Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• [ ] Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant[bot]]

Hi @NicholasRoge. Thank you for your report. To speed up processing of this issue, make sure that you provided the following information:

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[NicholasRoge]

@magento I am working on this

[m2-assistant[bot]]

Hi @NicholasRoge! :wave: Thank you for collaboration. Only members of Community Contributors Team are allowed to be assigned to the issue. Please use @magento add to contributors team command to join Contributors team.

[NicholasRoge]

@magento add to contributors team

[m2-assistant[bot]]

Hi @NicholasRoge! :wave: Thank you for joining. Please accept team invitation :point_right: here :point_left: and add your comment one more time.

[NicholasRoge]

@magento I am working on this

[m2-assistant[bot]]

Hi @engcom-November. Thank you for working on this issue. In order to make sure that issue has enough information and ready for development, please read and check the following instruction: :point_down:

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[engcom-November]

Verified the issue on Magento 2.4-develop branch and the issue is reproducible: Exception stack trace: ` [2021-12-24T11:27:33.855730+00:00] main.CRITICAL: TypeError: explode() expects parameter 2 to be string, null given in /var/www/html/mg24/magento2/app/code/Magento/Ups/Model/Carrier.php:920 Stack trace:

0 /var/www/html/mg24/magento2/app/code/Magento/Ups/Model/Carrier.php(920): explode()

1 /var/www/html/mg24/magento2/app/code/Magento/Ups/Model/Carrier.php(858): Magento\Ups\Model\Carrier->_parseXmlResponse()

2 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/Async/CallbackDeferred.php(99): Magento\Ups\Model\Carrier->Magento\Ups\Model{closure}()

3 /var/www/html/mg24/magento2/generated/code/Magento/Shipping/Model/Rate/Result/ProxyDeferred.php(61): Magento\Framework\Async\CallbackDeferred->get()

4 /var/www/html/mg24/magento2/generated/code/Magento/Shipping/Model/Rate/Result/ProxyDeferred.php(92): Magento\Shipping\Model\Rate\Result\ProxyDeferred->wait()

5 /var/www/html/mg24/magento2/generated/code/Magento/Shipping/Model/Rate/Result/ProxyDeferred.php(93): Magento\Shipping\Model\Rate\Result\ProxyDeferred->getError()

6 /var/www/html/mg24/magento2/app/code/Magento/Shipping/Model/Rate/CarrierResult.php(41): Magento\Shipping\Model\Rate\Result\ProxyDeferred->getError()

7 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/Quote/Address.php(1081): Magento\Shipping\Model\Rate\CarrierResult->getAllRates()

8 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/Quote/Address.php(1004): Magento\Quote\Model\Quote\Address->requestShippingRates()

9 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/Quote/Address/Total/Shipping.php(83): Magento\Quote\Model\Quote\Address->collectShippingRates()

10 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/Quote/TotalsCollector.php(261): Magento\Quote\Model\Quote\Address\Total\Shipping->collect()

11 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/ShippingMethodManagement.php(330): Magento\Quote\Model\Quote\TotalsCollector->collectAddressTotals()

12 /var/www/html/mg24/magento2/app/code/Magento/Quote/Model/ShippingMethodManagement.php(283): Magento\Quote\Model\ShippingMethodManagement->getShippingMethods()

13 [internal function]: Magento\Quote\Model\ShippingMethodManagement->estimateByAddressId()

14 /var/www/html/mg24/magento2/app/code/Magento/Webapi/Controller/Rest/SynchronousRequestProcessor.php(95): call_user_func_array()

15 /var/www/html/mg24/magento2/app/code/Magento/Webapi/Controller/Rest.php(188): Magento\Webapi\Controller\Rest\SynchronousRequestProcessor->process()

16 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Webapi\Controller\Rest->dispatch()

17 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\Webapi\Controller\Rest\Interceptor->___callParent()

18 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Webapi\Controller\Rest\Interceptor->Magento\Framework\Interception{closure}()

19 /var/www/html/mg24/magento2/generated/code/Magento/Webapi/Controller/Rest/Interceptor.php(23): Magento\Webapi\Controller\Rest\Interceptor->___callPlugins()

20 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/App/Http.php(116): Magento\Webapi\Controller\Rest\Interceptor->dispatch()

21 /var/www/html/mg24/magento2/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()

22 /var/www/html/mg24/magento2/lib/internal/Magento/Framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()

23 /var/www/html/mg24/magento2/pub/index.php(30): Magento\Framework\App\Bootstrap->run()

24 {main} [] []

`

[github-jira-sync-bot]

:white_check_mark: Jira issue https://jira.corp.magento.com/browse/AC-2052 is successfully created for this GitHub issue.

[m2-assistant[bot]]

:white_check_mark: Confirmed by @engcom-November. Thank you for verifying the issue.
Issue Available: @engcom-November, You will be automatically unassigned. Contributors/Maintainers can claim this issue to continue. To reclaim and continue work, reassign the ticket to yourself.

[engcom-Hotel]

Hello @NicholasRoge,

Thanks for reporting the issue!

The issue has been fixed and delivered by the internal team. Related commits can be found here.

Thanks