DEFAULT is incompatible with datatype of domain "<str>"

  Explanation:   The  DEFAULT  (SQL)  or  DEFAULT  VALUE  FOR  SQL
  (CDD/Rep)  is  not  compatible  with  the datatype of the domain
  (global field).

  User Action:  Ensure that the datatype of the  domain  displayed
  in  the  error  message  is consistent with the DEFAULT (SQL) or
  DEFAULT VALUE FOR SQL (CDD/Rep) of the domain (global field).