All I see online is that each object can have 2 master-detail relationships, but on the Salesforce App Limits PDF : https://na5.salesforce.com/help/pdfs/en/salesforce_app_limits_cheatsheet.pdf
It says that custom objects can have 8, what release was this in? I am studying for DEV 401 and I wanted to make sure I knew the answer to this before I take it.
Best Answer
There is only 2 Master Detail Relationship allowed per object and it can have upto three custom detail levels.
You can read more about it here, Considerations for Relationships