Sub-Table: Set Default Value only work on "Add New" record not on edit record

Hello,

I have question related to the sub-table. I did set default value on other record that depending on other record…it work well on the “Add New” item. But, why on editing the saved record, the default value will be not able work?

This example add new line record…the “set default value” perfectly working auto fill based on the date select on “Time Start” and the other data auto fill based on set default value

This example when edit a record on “Time start” but the rest record unable auto update based on “Set default value”

Kindly advise.
Thanks.

The Edit action has no default value. When a record already exists, each field will have a value, even if that value is null.

Understood…Thank you