Hey Preethi,
Your issue is quite common, unfortunately committing non-persistent entities doesn't make them persistent, one option would be to copy what you need to a persistent entity and delete the non-persistent one.
Another option would be to kind of ignore the message, while 100 is not too much, it's a good practice to keep an eye out on this number, if tomorrow you have 500 I would investigate why there are so many non-persistent entities. For now you can simply change the runtime setting com.mendix.webui.StateSizeWarningThreshold to 200. More information about runtime settings can be found here: https://docs.mendix.com/refguide/custom-settings/
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