There are 79 different types of blocks in Horizon that could appear on a patron's account. Each specific type of block has a set period of time that block will remain in the history of the patron's account. These standards are set by System policy. The block is automatically deleted from the patron's history after that specified time has elapsed. There are too many block types to list all of the history periods here.
However, it may be helpful to know that any blocks related to money will remain on the patron's account for 1460 days (4 years). Other block history settings vary between 60 - 365 days.
NEVER delete blocks from history - especially those related to fines/fees blocks. Those need to remain on the borrower's account for the full 4 years in case there's a dispute of the charges or other research regarding their payment method, location, etc.
rev. 2/2018
On The Horizon is an FAQ publication for the staff of the Fresno County Public Library on the use of Horizon and ValleyCat.
