...locking entities in HFM

Hi all,

Recently, I was working on an assignment to start locking the entities in an HFM application with 8 scenarios, 9 years of data and 600 base entities.

The options were the following:

1. Should we lock only the base entities?
2. Should we lock both the base entities and the parents?
3. Should we not lock anything? 

In the end, we decided that the best approach is