I've shared a parent account. The user can see the account, but not the children account. Can they view the children and their opportunities?
Also, I understand role heirarchy, but can the members of the same role see each other's accounts?
The error message is:
Insufficient Privileges You do not have the level of access necessary to perform the operation you requested. Please contact the owner of the record or your administrator if access is necessary. For more information, see Insufficient Privileges Errors.