Programmatically Share, Retrieve Shared Users and UnShare a Dynamics 365 record with a User OR Team

This is just to share some simple code snippets relates to sharing. This works well.

Sharing

using Microsoft.Crm.Sdk.Messages;

public static void ShareRecord(IOrganizationService OrganizationService, string entityName, Guid recordId, Guid UserId)
{
    EntityReference recordRef = new EntityReference(entityName, recordId);
    EntityReference User = new EntityReference(SystemUser.EntityLogicalName, UserId);

    //If its a team, Principal should be supplied with the team
    //EntityReference Team = new EntityReference(Team.EntityLogicalName, teamId);

    GrantAccessRequest grantAccessRequest = new GrantAccessRequest
    {
        PrincipalAccess = new PrincipalAccess
        {
            AccessMask = AccessRights.ReadAccess | AccessRights.WriteAccess | AccessRights.AppendToAccess | AccessRights.,
            Principal = User
            //Principal = Team
        },
        Target = recordRef
    };
    OrganizationService.Execute(grantAccessRequest);
}

Its great that VS intellisense would help you identify which Access Right you can set.

Retrieve user who has been shared with

public static void RetrieveSharedUsers(IOrganizationService OrganizationService, EntityReference entityRef)
{
    var accessRequest = new RetrieveSharedPrincipalsAndAccessRequest
    {
        Target = entityRef
    };
    var accessResponse = (RetrieveSharedPrincipalsAndAccessResponse)OrganizationService.Execute(accessRequest);
    foreach (var principalAccess in accessResponse.PrincipalAccesses)
    {
        // principalAccess.Principal.Id - User Id
    }
}

Revoke the Share (UnShare)

 public static void RevokeShareRecord(IOrganizationService OrganizationService, string TargetEntityName, Guid TargetId, Guid UserId)
 {
    EntityReference target = new EntityReference(TargetEntityName, TargetId);
    EntityReference User = new EntityReference(SystemUser.EntityLogicalName, UserId);

    RevokeAccessRequest revokeAccessRequest = new RevokeAccessRequest
    {
        Revokee = User,
        Target = target
    };
    OrganizationService.Execute(revokeAccessRequest);
}