Hello together,

the Service Header knows a field "FAX No." but this field isn't populated from the master datas (Contact, Customer).

Please add the field into the Code:
IF Cont.GET(ContactNo) THEN BEGIN
"Contact No." := Cont."No.";
"Phone No." := Cont."Phone No.";
"E-Mail" := Cont."E-Mail";
// new +++
"Fax No." := Cont."Fax No";
// new ---