Insert date automatically but never change

[John Kenickney]

On my letters I insert the date with the field {TIME \@ "d MMMM yyyy"}. When
I open the same letter later, the date changes to the date of today. Is
there a way to insert the date automatically at the time of creation of the
document, but never change it again?

 

[AUSongbird]

Use Insert, Field, DAte & Time, Create Date. { CREATEDATE \* MERGE FORMAT }