The following example shows how to unset the authorization tag defined for the address field of the Customer table, using the unsetDDMAuthTag() method:
USING OpenEdge.DataAdmin.DataAdminService FROM PROPATH.

DEFINE VARIABLE service AS DataAdminService NO-UNDO. 
DEFINE VARIABLE lResult AS LOGICAL NO-UNDO.

service = NEW DataAdminService(LDBNAME("DICTDB")).
 
lResult = service:unsetDDMAuthTag("customer","address").