A few points to remember
If you want to change the fiscal year start month, and your company follows the Gregorian calendar year, then use standard fiscal years
It is not possible to disable custom fiscal years once enabled. Enabling custom fiscal years has impacts on your reports, forecasts, quotas, and other date-sensitive material.
Once multiple currencies are enabled for your organization, it is not possible to disable them.
The Sharing button may appear on an account detail page even though your sharing model for accounts is Public Read/Write, if your sharing model for related opportunities is Public Read Only.
By default, Salesforce uses hierarchies, for example the role or territory hierarchy, to automatically grant records access to users above the record owner in the hierarchy.
It is not possible to include high-volume portal users in sharing rules because they don't have roles and can't be in public groups.
The sharing rule is always used to open up the access. By
It is not possible to...
