I honestly don’t know for sure. I have heard that some people have been able to find out, but I don’t know if that was something that they should have been told or even whether they really were told. It’s also possible that there have been changes in the system such that the reps really can’t see it.
I would not stress about it unless something happens that raises a red flag. So many small updates can be made that make absolutely no difference. There are a number of responses that are often completed incorrectly, and schools will screen for those & fix. The vast majority of those fixes don’t affect the EFC at all.