Customization of persisted notifications, in which when a subject event happens, a notification is persisted. For instance, customization may be according to language, style, or other user preference. This may be particularly useful in situations in which a single user may change styles, user preferences, or even languages; or in which an application that generated the notifications is to be shared amongst various diverse users. For instance, one user may prefer notifications in English—another may prefer notifications in French but be blind, another may prefer Mandarin when she is in a non-English speaking country but English when she is in an English speaking country. The principles described herein allow flexible customizations and localizations of persistent notifications without having to translate every notification into every possible language, or persist the notification according to every possible style or user preference.