How to mass reassign approval requests in Salesforce

Requirement

Need to be able to mass transfer pending approval requests.

Solution

APPROACH 1: Standard Salesforce Approach

• Setup >> Mass Transfer >> Mass Transfer Approval Processes
• Enter the criteria and select the new approver

APPROACH 2: Using Apex Code

ProcessInstanceWorkItem pitems = [SELECT Id, ActorId FROM ProcessInstanceWorkItem];
for(ProcessInstanceWorkItem p: pitems) pi.ActorId = '0051I0000027LCVQA2';//replace with user id.
update pitems;