In the first stage of creating reason codes for overriding first visit date warnings, it is possible to create reason codes in Accounting>Global Settings>Reason Codes.
A reason code is used whenever a warning concerning a first visit date is overridden.
It is impossible to create 2 reason codes with the same name. Note that Reason codes are not case-sensitive, so it is impossible to create a code called RN Conflict and another called rn conflict.
Reason codes can be disabled or enabled but not deleted.