I would like to add an optional parameter to the Sierra API endpoint for checking in items to allow for backdating those transactions as you can within in the client as it may help with automating some projects.

For an immediate example, I have identified a number of items that were not removed from the checkout table correctly due to locked patron records, where the were placed in transit and I can see a time the checkout ought to have occurred via the in transit message. I would like to write a script to correct these failed checkins once they have been identified and ideally use the timestamps from those messages to make those corrections.