Convert to Customer to working anymore.

[JelleGe]

Magento version #: 2.4.6-p2

Edition (EE, CE, OS, etc): CE

Expected behavior: Convert order to customer

Actual behavior: Error message; A customer with the same email address already exists in an associated website.

It's not possible anymore to convert a guest order to a customer, when there is already an existing customer with the same email address. Then we fetch the error: A customer with the same email address already exists in an associated website.

[JeremyAtMethodMarketing]

Magento changed how magento/module-customer/Model/AccountManagement.php handles the isEmailAvailable function. It now checks the GUEST_CHECKOUT_LOGIN_OPTION_SYS_CONFIG config and if it is set to false isEmailAvailable always returns true.
In magepal/magento2-guest-to-customer/Controller/Adminhtml/Customer/Index.php execute() if isEmailAvailable() evaluates to true it attempts to create a new customer, this is what throws the error. The customer does exist and the plugin errors out of customer creation and never reaches the merge guest with customer code.

[iphigenie]

@JeremyAtMethodMarketing thanks for spotting it!
I don't like enabling this "guest checkout login" option BUT it does explain why this stopped working.

[srenon]

@JeremyAtMethodMarketing @iphigenie ... can you test these changes and let me know

cf397a1

[ekki82]

@JeremyAtMethodMarketing @iphigenie ... can you test these changes and let me know

cf397a1

Hi, I got it running successfully on Magento 2.4.7. But, the changes in the index.php only work fine, if you set the "Automatically add order to customer" field to yes in the backend. If you set it to "No", the system still tells you, that the customer email adress is already exists.