UpsertData

Updates an existing row in a data extension for the specified number of filter columns listed in name value pairs followed by a list of columns to be updated in name and value pairs. If no data exists in that row, the function inserts a row. The function returns the number of affected rows. You can include multiple name and value pairs to build your WHERE and INSERT clauses. Use this function with landing pages and SMS messages only.

UpsertData(1, 2, 3, 4, 5, 6)

Ordinal	Type		Description
1	string	Required	Name of data extension from which to update the specified row
2	numeric	Required	Number of columns used to build WHERE clause
3	string	Required	Column name to build WHERE clause
4	string	Required	Value used to build WHERE clause
5	string	Required	Column name to build INSERT clause
6	string	Required	Value used to build INSERT clause