Functions are small blocks of JavaScript code that you can use to extend Tealium functionality. This article provides information on function types and the key benefits of functions.

This article provides information on triggers for each function type.

This article provides information on the functions execution environment, rate limits, and execution limits.

This article provides information on the features of the functions code editor.

This article provides information on the APIs and libraries available for functions.

This article provides best practices for functions to avoid exceeding the memory and execution time limits.

This section provides instructions for creating functions, using global variables, testing functions, viewing statistics and logs, and deleting functions.

Event and visitor functions are invoked after the event or visitor is processed.

Data transformation functions are invoked after an event is collected from the data source and before the event is processed, and can modify event data.