Any listing that is active on the SmartMLS must be available for showings within 48 hours. If it is not ready to be shown, it must be marked Temporarily Off Market (TEMP) or Withdrawn (WITH) until it can be shown.
Per SmartMLS Rules & Regulations:
Section 4.24 Availability of Listed Property:
Listing brokers shall not misrepresent the availability of access to show or inspect listed property.
A listing must be available to be shown within 48 hours, if the property cannot be shown the listing needs to be in the temporarily off market status or withdrawn status.