Im on the Intuit web site and have to edit my 2018 return for an error. has anyone done that before?

[TurboTaxMary-Ann1]

If you have already NETFILED your income tax return, you will need to submit an adjustment request.  Please see the following link for instructions on how to submit an adjustment request, https://turbotax.community.intuit.ca/community/tax-return-amendment/help/i-have-filed-my-tax-return-....