Has anyone successfully negotiated this?
4 respuestas
You cannot mix Enterprise Edition with Professional Edition.
You can however mix standard licences with platform licences - like this for example
Enterprise Edition Licence and Force.com subscription Licence
Force.com licence gives you read access to Account / Contacts but not Opportunity. So depending on your needs and actual requirements, this may or may not be an option.
Download the various product comparisons from the main site to get a clearer picture.