diff --git a/obp-api/src/main/scala/code/api/ResourceDocs1_4_0/SwaggerJSONFactory.scala b/obp-api/src/main/scala/code/api/ResourceDocs1_4_0/SwaggerJSONFactory.scala
index 939a19f46..690194145 100644
--- a/obp-api/src/main/scala/code/api/ResourceDocs1_4_0/SwaggerJSONFactory.scala
+++ b/obp-api/src/main/scala/code/api/ResourceDocs1_4_0/SwaggerJSONFactory.scala
@@ -964,6 +964,7 @@ object SwaggerJSONFactory extends MdcLoggable {
     //Make a final string
     val definitions = "{\"definitions\":{" + particularDefinitionsPart + "}}"
     //Make a jsonAST from a string
+    org.scalameta.logger.elem(definitions)
     parse(definitions)
   }
 
diff --git a/obp-api/src/main/scala/code/api/util/APIUtil.scala b/obp-api/src/main/scala/code/api/util/APIUtil.scala
index db9ac975c..e5891fcaa 100644
--- a/obp-api/src/main/scala/code/api/util/APIUtil.scala
+++ b/obp-api/src/main/scala/code/api/util/APIUtil.scala
@@ -806,6 +806,12 @@ object APIUtil extends MdcLoggable with CustomJsonFormats{
       null
     else
       text
+  
+  def nullToString(text : String) =
+    if(text == null)
+      null
+    else
+      text
 
   def stringOptionOrNull(text : Option[String]) =
     text match {
diff --git a/obp-api/src/main/scala/code/api/util/ExampleValue.scala b/obp-api/src/main/scala/code/api/util/ExampleValue.scala
index a5329d7db..e17e2c559 100644
--- a/obp-api/src/main/scala/code/api/util/ExampleValue.scala
+++ b/obp-api/src/main/scala/code/api/util/ExampleValue.scala
@@ -23,7 +23,7 @@ case class ConnectorField(value: String, description: String) {
 object ExampleValue {
 
   val NoDescriptionProvided = "no-description-provided"
-  val NoExampleProvided = "no-example-provided"
+  val NoExampleProvided = ""
   val booleanTrue = "true"
 
   lazy val bankIdGlossary = glossaryItems.find(_.title == "Bank.bank_id").map(_.textDescription)
diff --git a/obp-api/src/main/scala/code/api/v1_4_0/JSONFactory1_4_0.scala b/obp-api/src/main/scala/code/api/v1_4_0/JSONFactory1_4_0.scala
index 487cfe4e0..ad4f70df8 100644
--- a/obp-api/src/main/scala/code/api/v1_4_0/JSONFactory1_4_0.scala
+++ b/obp-api/src/main/scala/code/api/v1_4_0/JSONFactory1_4_0.scala
@@ -455,15 +455,15 @@ object JSONFactory1_4_0 extends MdcLoggable{
           s"$parameter"
       }
     }
-    if(exampleFieldValue.contains(ExampleValue.NoExampleProvided)){
+    if(glossaryItemTitle.contains("jsonstring")){
       "" 
     } else {
-      s"""
-         |
-         |* [${boldIfMandatory()}](/glossary#$glossaryItemTitle): $exampleFieldValue
-         |
-         |""".stripMargin
-    }
+    s"""
+       |
+       |* [${boldIfMandatory()}](/glossary#$glossaryItemTitle): $exampleFieldValue
+       |
+       |""".stripMargin
+  }
   }
 
   def prepareJsonFieldDescription(jsonBody: scala.Product, jsonType: String): String = {
diff --git a/obp-api/src/main/scala/code/api/v5_0_0/JSONFactory5.0.0.scala b/obp-api/src/main/scala/code/api/v5_0_0/JSONFactory5.0.0.scala
index b6d0f56ba..4dbb87f19 100644
--- a/obp-api/src/main/scala/code/api/v5_0_0/JSONFactory5.0.0.scala
+++ b/obp-api/src/main/scala/code/api/v5_0_0/JSONFactory5.0.0.scala
@@ -28,22 +28,21 @@ package code.api.v5_0_0
 
 import java.lang
 import java.util.Date
-import code.api.util.APIUtil.{stringOptionOrNull, stringOrNull}
+
+import code.api.util.APIUtil.{nullToString, stringOptionOrNull, stringOrNull}
 import code.api.v1_2_1.BankRoutingJsonV121
-import code.api.v1_4_0.JSONFactory1_4_0.{CustomerFaceImageJson, MetaJsonV140}
 import code.api.v1_3_0.JSONFactory1_3_0.{cardActionsToString, createAccountJson, createPinResetJson, createReplacementJson}
 import code.api.v1_3_0.{PinResetJSON, ReplacementJSON}
-import code.api.v1_4_0.JSONFactory1_4_0.CustomerFaceImageJson
+import code.api.v1_4_0.JSONFactory1_4_0.{CustomerFaceImageJson, MetaJsonV140}
 import code.api.v2_1_0.CustomerCreditRatingJSON
 import code.api.v3_0_0.{CustomerAttributeResponseJsonV300, JSONFactory300}
-import code.api.v3_1_0.{AccountAttributeResponseJson, AccountBasicV310, CustomerWithAttributesJsonV310, PhysicalCardWithAttributesJsonV310, PostConsentEntitlementJsonV310}
+import code.api.v3_1_0.{AccountBasicV310, PostConsentEntitlementJsonV310}
 import code.api.v4_0_0.BankAttributeBankResponseJsonV400
 import code.bankattribute.BankAttribute
 import code.customeraccountlinks.CustomerAccountLinkTrait
-import com.openbankproject.commons.model.{AccountAttribute, AccountRouting, AccountRoutingJsonV121, AmountOfMoneyJsonV121, Bank, BankAccount, CardAttribute, Customer, CustomerAttribute, PhysicalCardTrait, User, UserAuthContext, UserAuthContextUpdate, View, ViewBasic}
+import com.openbankproject.commons.model._
 import net.liftweb.json.JsonAST.JValue
 
-import scala.collection.immutable
 import scala.collection.immutable.List
 
 case class PostBankJson500(
@@ -660,7 +659,7 @@ object JSONFactory500 {
       enabled = card.enabled,
       cancelled = card.cancelled,
       on_hot_list = card.onHotList,
-      technology = stringOrNull(card.technology),
+      technology = nullToString(card.technology),
       networks = card.networks,
       allows = card.allows.map(cardActionsToString).toList,
       account = createAccountJson(card.account, user),