What does the -1 do in the following statement: LET vMinDate = FieldValue('DateMin', 1) -1;

[#1]

What does the -1 do in the following statement:  LET vMinDate = FieldValue('DateMin', 1) -1;

[Gysbert_Wassenaar · Accepted solution]

A substracts 1 day from the DateMin so you get the day before DateMin.