Modify the sequential ID that will be used prior to adding the ID to the database. This is useful for changing the behavior of how sequential IDs are selected.
add_filter( 'gpui_sequential_unique_id_pre_insert', 'my_custom_function', 10, 4 );
The unique ID to be inserted. If
false, the next ID will be calculated using MySQL
The ID of the form for which the unique ID is being generated.
The ID of the field for which the unique ID is being generated.
The number from which the sequence should start.
This filter is available since Gravity Forms Unique ID 1.2.2.