// The InputParameters collection contains all the data passed in the message request.

            if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)

            {

                // Obtain the target entity from the input parameters.

                Entity account = (Entity)context.InputParameters["Target"];

                try

                {

                    tracingService.Trace(context.Depth.ToString());

                    if (context.Depth > )

                    {

                        return;

                    }

                    // In case the user removes the value

                    if (account.Attributes["revenue"] != null)

                    {

                        var revenue = ((Money)account.Attributes["revenue"]).Value;

                        revenue += ;

                        account.Attributes["revenue"] = new Money(revenue);

                    }

                }

                catch (FaultException<OrganizationServiceFault> ex)

                {

                    throw new InvalidPluginExecutionException("An error occurred in MyPlug-in.", ex);

                }

                catch (Exception ex)

                {

                    tracingService.Trace("MyPlugin: {0}", ex.ToString());

                    throw;

                }

            }