For example, if multiple IDs are passed and repeated processing can be executed, processing is performed for each ID, the same action does not need to be executed by hand over and over again, so the intention is to reduce the number of work steps. If you execute an SQL SELECT statement, you can retrieve data all at once by embedding an IN clause, for example. However, for example, when updating data via the REST API, if an update endpoint has only been created for a single data, there is no reason to establish a new endpoint that accepts multiple IDs, but if anything, I want to keep throwing different values to the same endpoint over and over again.