Hy,

Is there a way to override opportunity New button and let it works in both Salesforce Classic and Lightning ?

We already have some VisualForce code to prepopulate CloseDate field and an other field. It works well in Salesforce Classic since a while.

I've got an error in LEX ,  unable us to create any opportunity ("Record type ID value isn't valid for the user...")

1. Is there a way to do this in lightning Experience?
2. How to manage code so It will work simultanestly in both Classic and Lightning versions?

Thank's for your help!