Share Entity record with Team

          Below is the sample code to share entity record with team in MS CRM 2011

            var teamReference = new EntityReference(“team”, teamId);
            var grantAccessRequest = new GrantAccessRequest
            {
                PrincipalAccess = new PrincipalAccess
                {
                    AccessMask=AccessRights.ReadAccess | AccessRights.WriteAccess,        
                    Principal=teamReference
                },

                Target=new EntityReference(“lead”,recordId)

            };
            service.Execute(grantAccessRequest);

           // Get teamId from below function

private Guid GetTeamId(string teamName,OrganizationService service)
        {
            Guid teamId=Guid.Empty;
            QueryByAttribute query = new QueryByAttribute();
            ColumnSet cols = new ColumnSet();
            cols.AddColumn(“teamid”); 

            query.ColumnSet = cols;
            query.AddAttributeValue(“name”, teamName);
            query.EntityName = “team”; 

            EntityCollection entityCollection = (EntityCollection)service.RetrieveMultiple(query);              
            if (entityCollection.Entities.Count > 0)
            {
                    Entity entity =entityCollection.Entities[0];
                    teamId = entity.Id;
            }
            return teamId;          

        }

I have already posted the same for CRM 4.0. Please find the reference link below.
https://arvindcsit.wordpress.com/2012/02/26/create-contact-and-share-the-record-which-contains-lookuppicklist-and-string-datatype/

Author: Arvind Singh

Solution Architect with 15+ years of exp. Dynamics CRM, Power Platform, Azure which includes Solution, Design, Development, Deployment, Maintenance and support experience. View all posts by Arvind Singh