SuiteTalk: when passing "_englishUS", I get from SuiteTalk: "Status was not successful with code INVALID_KEY_OR_REF and message "Invalid language reference key en_US."

AI generated answer (using internal Slack threads):

****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ****** Based on the conversations, it seems that the issue you're experiencing with SuiteTalk and the "_englishUS" language reference key might be related to the language settings in your NetSuite environment. One of the threads suggests a workaround for a similar issue: changing the user preference to English (International) or English (US). This can be done by navigating to Home icon -> Set Preferences, Localisation -> Language. However, this requires the Multi-Language preference to be enabled (Setup -> Company -> Enable Features -> Company -> International -> Multi-Language). Please note that this workaround was suggested by a user and not by NetSuite support. It's also important to be aware of potential side effects, especially regarding date formats. If you don't have Multi Languages enabled, you won't be able to set the above preference. The impact of enabling Multi Languages on your integrations is not clear from the conversations. Please remember to test any changes in a non-production environment first to avoid any potential issues.