How to delete serial issues:
Koha will always predict the next expected issue and create the issue ready for you to receive. You also have the option of creating expected issues yourself. You may later want to delete these predicted issues, particularly when a journal subscription ends.
Search for your subscription
Select Serial Collection form the options on the left and all the issues will be displayed.
In this example the subscription has ended in 2019 so I want to delete the issues for 2020. They are displayed under the 2020 tab, there is only one and it’s selected but the same procedure applies for multiple issues.
Click the Edit Serials button and then change the Status from Expected to Delete.