Technical description

The setup fields need to be implemented on at least two levels, for example, a Singleton and Supplemental table. The setup options should be identical.

To read the setup values, we need to provide a function that first checks the most detailed level, the Supplemental table, and then the Singleton table.

The following code snippet is a part of Codeunit 11 Gen. Jnl.-Check Line, and checks the values of Allow Posting From and Allow Posting To in reference to a PostingDate variable:

DateNotAllowed(PostingDate : Date) : Boolean
IF (AllowPostingFrom = 0D) AND (AllowPostingTo = 0D) THEN BEGIN
  IF USERID <> '' THEN
    IF UserSetup.GET(USERID) THEN BEGIN
      AllowPostingFrom := UserSetup."Allow Posting From";
      AllowPostingTo := UserSetup."Allow Posting To";
    END;
  IF (AllowPostingFrom = 0D) AND (AllowPostingTo = 0D) THEN BEGIN
    GLSetup.GET;
    AllowPostingFrom := GLSetup."Allow Posting From";
    AllowPostingTo...