Uppercase()

Returns the provided string using only uppercase letters.

Marketing Cloud Engagement	✅ Yes
Marketing Cloud Next	✅ Yes

This function became available in Marketing Cloud Next during the Summer ’26 release (API version 67.0).

The Uppercase() function has one parameter:

• sourceString (string): Required. The string to convert to uppercase.

To use the function, pass it a string.

The example returns the string in all capital letters.