Hold pickup notice queue incomplete - holdshelf issue?

We are a large consortia of 70 libraries.

We have a consistent issue with items going on the holdshelf not matching the number of hold pickup notices in the queue. When we open tickets the response is that the holdshelf needs to be cleared for notices to properly work.

We have consistent clearing processes, with occasional exceptions. For example: this morning we have 186 items to clear system wide from the hold shelf. Of those 170 expired overnight. Of the remaining we see libraries who were closed and 4 libraries who neglected to clear 10 items. That’s it!

A library running the pickup notices with just 86 remaining holds, yesterday - had only 3 of their notices in the queue out of 20. They needed to manually email patrons or phone. The issue for them seems to be opening earlier than their fellow libraries - before the expired holds were brought down below what can successfully build a notice queue. They would like to let patrons know as early as possible that their items are here - this is happy news to share.

Are any of you experiencing this too? Have you solved it? I wonder if there might be some process I can engage in with Innovative for allocation of system services, or memory. Any advice is greatly appreciated. Feel free to reach me directly if you like.

Laurie Shedrick - Mid-Hudson Library System