[Krom]

Согласен думаю по коду будет проще понять в чем проблема:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
using SDK = Microsoft.Crm.Sdk;
using pluginUpdateKursperescheta.CrmSdk;


namespace pluginUpdateKursperescheta
{
    public class onUpdateKp : SDK::IPlugin
    {
        public void Execute(SDK.IPluginExecutionContext context)
        {
            CrmAuthenticationToken token = new CrmAuthenticationToken();
            token.AuthenticationType = 0;
            token.OrganizationName = context.OrganizationName;

            CrmService service = new CrmService();
            RegistryKey regkey = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\MSCRM");

            service.Url = String.Concat(regkey.GetValue("ServerUrl").ToString(), "/2007/crmservice.asmx");
            service.CrmAuthenticationTokenValue = token;
            service.UseDefaultCredentials = true;

            //-----------------------------------------------------------------------------------------

            SDK::DynamicEntity currentKp = context.PostEntityImages["KpIm"] as SDK::DynamicEntity;
            try
            {
                if (currentKp.Properties.Contains("new_kursperesheta"))
                {
                    ColumnSet cols = new ColumnSet()
                    {
                        Attributes = new string[] { "new_wholeamount" }
                    };

                    ConditionExpression cond = new ConditionExpression()
                    {
                        AttributeName = "quoteid",
                        Operator = ConditionOperator.Equal,
                        Values = new object[] { ((SDK::Key)currentKp.Properties["quoteid"]).Value }
                    };

                    FilterExpression filt = new FilterExpression()
                    {
                        Conditions = new ConditionExpression[] { cond }
                    };
                    QueryExpression query = new QueryExpression()
                    {
                        ColumnSet = cols,
                        EntityName = EntityName.quotedetail.ToString(),
                        Criteria = filt,
                    };
                    BusinessEntity[] buss = service.RetrieveMultiple(query).BusinessEntities;
                    decimal wholeamount = 0;
                    foreach (var item in buss)
                    {
                        wholeamount += ((quotedetail)item).new_wholeamount.Value;
                    }
                    ColumnSet colsTemp = new ColumnSet() { Attributes = new string[] { "new_temp_salesorderid" } };
                    ConditionExpression condTemp = new ConditionExpression() 
                    {
                        AttributeName = "new_quoteid",
                        Operator = ConditionOperator.Equal,
                        Values = new object[] {((SDK::Key)currentKp.Properties["quoteid"]).Value }
                    };
                    FilterExpression filTemp = new FilterExpression() 
                    {
                        Conditions = new ConditionExpression[] { condTemp }  
                    };
                    QueryExpression queryTemp = new QueryExpression() 
                    {
                        ColumnSet = colsTemp,
                        EntityName = EntityName.new_temp_salesorder.ToString(),
                        Criteria = filTemp
                    };
                    BusinessEntity[] bussTemp = service.RetrieveMultiple(queryTemp).BusinessEntities;
                    if (bussTemp.Length > 0) 
                    {
                        new_temp_salesorder tempSales = new new_temp_salesorder();
                        tempSales.new_temp_salesorderid = new Key() { Value = ((new_temp_salesorder)bussTemp[0]).new_temp_salesorderid.Value };
                        tempSales.new_quoteid = ((SDK::Key)currentKp.Properties["quoteid"]).Value.ToString();
                        tempSales.new_totallineitemamount = new CrmMoney() { Value = wholeamount };
                        tempSales.new_discountamount = new CrmMoney() { Value = wholeamount - (wholeamount * ((SDK::CrmDecimal)currentKp.Properties["discountpercentage"]).Value / 100) };
                        tempSales.new_totaltax = new CrmMoney() { Value = tempSales.new_discountamount.Value * Convert.ToDecimal(0.18) };
                        tempSales.new_totalamount = new CrmMoney() { Value = tempSales.new_totaltax.Value + tempSales.new_discountamount.Value };
                        service.Update((BusinessEntity)tempSales);
                    }
                    else
                    {
                        new_temp_salesorder tempSales = new new_temp_salesorder();
                        tempSales.new_temp_salesorderid = new Key();
                        tempSales.new_name = ((SDK::Key)currentKp.Properties["quoteid"]).Value.ToString();
                        tempSales.ownerid = new Owner() { Value = ((SDK::Lookup)currentKp.Properties["createdby"]).Value };
                        tempSales.new_quoteid = ((SDK::Key)currentKp.Properties["quoteid"]).Value.ToString();
                        tempSales.new_totallineitemamount = new CrmMoney() { Value = wholeamount };
                        tempSales.new_discountamount = new CrmMoney() { Value = wholeamount - (wholeamount * ((SDK::CrmDecimal)currentKp.Properties["discountpercentage"]).Value / 100) };
                        tempSales.new_totaltax = new CrmMoney() { Value = tempSales.new_discountamount.Value * Convert.ToDecimal(0.18) };
                        tempSales.new_totalamount = new CrmMoney() { Value = tempSales.new_totaltax.Value + tempSales.new_discountamount.Value };

// тут падает service.Create((BusinessEntity)tempSales)	Cannot call 'pluginUpdateKursperescheta.CrmSdk.CrmService.Create(pluginUpdateKursperescheta.CrmSdk.BusinessEntity)' because it is a web method.

                        service.Create((BusinessEntity)tempSales);
                    }
                }
            }
            catch (System.Web.Services.Protocols.SoapException ex)
            {
                throw new SDK::InvalidPluginExecutionException(
                   String.Format("An error occurred in the {0} plug-in.", this.GetType().ToString()), ex);
            }
        }
    }
}