diff --git a/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml b/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
index ca3473a60..561feef77 100755
--- a/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
+++ b/datamodels/2.x/itop-service-mgmt/datamodel.itop-service-mgmt.xml
@@ -1580,41 +1580,7 @@ public function PrefillSearchForm(&$aContextParam)
           <edit_mode>none</edit_mode>
         </field>
       </fields>
-			<methods>
-				<method id="DoCheckToWrite">
-					<static>false</static>
-					<access>public</access>
-					<code><![CDATA[
-					public function DoCheckToWrite()
-	{
-		parent::DoCheckToWrite();
-
-		/* This check is now useless as customercontracts_list is no more editable from the SLA side
-		$aCustomerContracts = $this->Get("customercontracts_list");
-		foreach ($aCustomerContracts as $sAttCode => $oCustomerContracts)
-		{
-			// Recurse inside the subdirectories
-			$sOql = "SELECT lnkCustomerContractToService AS ccs WHERE ccs.customercontract_id=:customercontract_id AND ccs.service_id=:service_id";
-			$aQueryParams['customercontract_id'] = $oCustomerContracts->Get("customercontract_id");
-			$aQueryParams['service_id'] = $oCustomerContracts->Get("service_id");
-			if ($this->Get("id") != null)
-			{
-				$sOql = $sOql." AND ccs.sla_id!=:sla_id";
-				$aQueryParams['sla_id'] = $this->Get("id");
-			}
-			$oQuery = DBSearch::FromOQL($sOql, $aQueryParams);
-			$oResultSql = new DBObjectSet($oQuery);
-			$oResultSql->OptimizeColumnLoad(['ccs' => ['customercontract_name','service_name']]);
-			if ($aCurrentRow = $oResultSql->Fetch())
-			{
-				$this->m_aCheckIssues[] = Dict::Format('Class:SLA/Error:UniqueLnkCustomerContractToService',$aCurrentRow->Get('customercontract_name'),$aCurrentRow->Get('service_name'));
-			}
-		}
-		*/
-	}
-			     ]]></code>
-				</method>
-			</methods>
+			<methods/>
 			<presentation>
         <details>
           <items>