This thread is resolved. Here is a description of the problem and solution.
Problem:
The client reported an issue where the admin received an order confirmation email in the HR (Croatian) language, but the customer received the same email in SI (Slovenian), despite all strings being translated correctly in WPML.
Solution:
We first recommended testing with only the default WordPress theme and essential plugins (WooCommerce and WPML) to ensure that the issue wasn't caused by any other plugin or theme conflicts. Upon testing, it was confirmed that the HR email was sent correctly to the customer under these conditions.
Further investigation revealed that the issue was due to the use of a custom string added in the email content in SL (Slovenian), which was not translated. We advised the client to either translate these custom strings via WPML > Translation Management or to delete the custom strings and revert to using the default provided strings.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your specific case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should you need further assistance, please do not hesitate to open a new support ticket at WPML support forum.
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