You can update only the date range of existing relationships. If other relationships already exist between the same two parties with the same relationship role, your updated date range must not overlap the date ranges of those existing relationships.

You can enter or change an end date to terminate a relationship at the specified date. You can also extend a relationship by entering a later end date or removing the end date, even for relationships with an end date that already passed.

If you use the current date for the start date, then the relationship's start time is the system time. If not, the start time is at the beginning of the start date. The relationship's end time is at the end of the end date.