I e-filed my state return on 2/28/20 and it is STILL pending as of 3/14/20. Why is it taking so long to be accepted? Anything I can do?
It depends.
Sometimes it's within 24-48 hours and other times it can take several days.
Attached are some links to help you check the status of your return.
Checking E-File status
State E-file pending