In what language is the flow interview error email generated?

The flow interview error email is generated in the language set in the user's profile. This means that when an error occurs during the execution of a flow, the notification sent to the user regarding that error will be presented in a language that aligns with the preferences established in the user’s individual profile settings.

This design choice ensures that users receive critical error notifications in a language they are comfortable with, allowing for better understanding and quicker response to issues. It emphasizes the personalized experience within Salesforce, where user profiles dictate not just accessibility and permissions, but also the language context in which communications occur.

Considering the language dynamics of Salesforce, while organizational default language and Salesforce's default language settings play some roles, they apply to broader system functionality rather than the specific context of user notification regarding flow errors. Thus, allowing the email language to be set according to individual user profile preferences enhances user comprehension and engagement.