Hi,
Is it possible to do so, that when creating an opportunity it is possible to add an contact to the opportunity (in the create window), which is then added to the “Contacts” panel underneath the opportunity when the opportunity is created? If so, how could I make this?
Well, you can create the Opportunity, and then the next screen you see is the Detail view of the new opportubity; then you scroll down to the “contacts” subpanel and click “Select” to link an existing contact, or “Create” to create a new one and link it.
Why do you need to do it in just one step?