The gravityflow_inbox_sorting filter allows the sorting criteria to be modified before searching for entries in the inbox.

The filter should return an array containing the following optional elements: "direction", "key" (the field ID e.g. 1) and "is_numeric" (true/false).

Further details in the GFAPI documentation.

Example usage:

add_filter( 'gravityflow_inbox_sorting', 'sh_gravityflow_inbox_sorting', 10 );

 * Reverse the order of the entries in the inbox.
 * @param array $sorting
 * @return array
function sh_gravityflow_inbox_sorting( $sorting ) {
	return array( 'direction' => 'ASC' );


This code should be placed in the functions.php file of your active theme.