Submitting the return for filing is just like dropping it into a mailbox - you can not get it back or change it.
Once you submit and find that you need to make a change, you will have to wait until the IRS either accepts or rejects the return. If the return is rejected by the IRS, then you can make the necessary changes and resubmit it. If the return is accepted, then the only way to change it is to prepare an amended return and file it by mail.
Did you itemize? The CASDI is a deductible state tax but *only* if you otherwise itemized instead of taking the standard deduction. If you did not itemize, then it makes no difference if you entered it or not.
CA Disability benefit payments received are not reportable.
I should say that is it taxable but only if received in place of unemployment insurance.
Per CA EDD
Disability Insurance (DI) benefits are not reportable for tax purposes except when considered to be a substitute for unemployment compensation when paid to an individual who is ineligible for unemployment insurance (UI) benefits solely because of the disability. Only in this instance, where DI benefits are received in lieu of UI benefits, will the EDD provide the claimant with a 1099G form showing amounts paid which are reportable (no more than the original UI maximum) and forward a copy of the 1099G to the Internal Revenue Service (IRS).
Submitting the return for filing is just like dropping it into a mailbox - you can not get it back or change it.
Once you submit and find that you need to make a change, you will have to wait until the IRS either accepts or rejects the return. If the return is rejected by the IRS, then you can make the necessary changes and resubmit it. If the return is accepted, then the only way to change it is to prepare an amended return and file it by mail.