1. From Setup, enter Defer Sharing Calculations in the Quick Find box, then select Defer Sharing Calculations.
2. In the Sharing Rule Calculations related list, click Suspend.
3. Make changes to sharing rules, roles, territories, or public groupsparticipating in sharing rules. Note Any changes to sharing rulesrequire a full recalculation.To enable sharing rule calculation,click Resume.
4. To manually recalculate sharing rules, click Recalculate.