Some offices have restricted their Listing Agents from providing one day codes because they take the security of their client’s property seriously. Unfortunately, one-day codes have been abused by showing agents who have sent their buyers to view properties unaccompanied or outside of the appointed showing time. Showing agents should not expect or demand one-day codes. They are used at the discretion of the listing agent, as a last resort, and in special circumstances. Listing Agents are under no obligation to provide Cooperating Agents a one-day code!