diff --git a/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/model/ScenarioOutput.scala b/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/model/ScenarioOutput.scala
index b527156a..8931b042 100644
--- a/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/model/ScenarioOutput.scala
+++ b/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/model/ScenarioOutput.scala
@@ -6,6 +6,8 @@ import com.github.dwickern.macros.NameOf.*
 import derevo.circe.decoder
 import derevo.circe.encoder
 import derevo.derive
+import io.circe.Decoder
+import io.circe.Encoder
 import io.circe.Json
 import sttp.tapir.derevo.schema
 import sttp.tapir.generic.Configuration as TapirConfig
@@ -16,6 +18,8 @@ import ru.tinkoff.tcb.bson.derivation.bsonEncoder
 import ru.tinkoff.tcb.circe.bson.*
 import ru.tinkoff.tcb.protocol.json.*
 import ru.tinkoff.tcb.protocol.schema.*
+import ru.tinkoff.tcb.utils.transformation.json.JsonTransformations
+import ru.tinkoff.tcb.utils.transformation.xml.XmlTransformation
 import ru.tinkoff.tcb.utils.xml.XMLString
 
 @derive(
@@ -28,6 +32,7 @@ import ru.tinkoff.tcb.utils.xml.XMLString
 @BsonDiscriminator("mode")
 sealed trait ScenarioOutput {
   def delay: Option[FiniteDuration]
+  def isTemplate: Boolean
 }
 
 object ScenarioOutput {
@@ -45,16 +50,44 @@ object ScenarioOutput {
 final case class RawOutput(
     payload: String,
     delay: Option[FiniteDuration]
-) extends ScenarioOutput
+) extends ScenarioOutput {
+  val isTemplate = false
+}
 
-@derive(decoder, encoder)
 final case class JsonOutput(
     payload: Json,
-    delay: Option[FiniteDuration]
+    delay: Option[FiniteDuration],
+    isTemplate: Boolean = true
 ) extends ScenarioOutput
 
-@derive(decoder, encoder)
+object JsonOutput {
+  implicit val joEncoder: Encoder.AsObject[JsonOutput] =
+    Encoder.forProduct2(
+      nameOf[JsonOutput](_.payload),
+      nameOf[JsonOutput](_.delay)
+    )(jo => (jo.payload, jo.delay))
+
+  implicit val joDecoder: Decoder[JsonOutput] =
+    Decoder.forProduct2(nameOf[JsonOutput](_.payload), nameOf[JsonOutput](_.delay))((pl, dl) =>
+      JsonOutput(pl, dl, pl.isTemplate)
+    )
+}
+
 final case class XmlOutput(
     payload: XMLString,
-    delay: Option[FiniteDuration]
+    delay: Option[FiniteDuration],
+    isTemplate: Boolean = true
 ) extends ScenarioOutput
+
+object XmlOutput {
+  implicit val xoEncoder: Encoder.AsObject[XmlOutput] =
+    Encoder.forProduct2(
+      nameOf[XmlOutput](_.payload),
+      nameOf[XmlOutput](_.delay)
+    )(jo => (jo.payload, jo.delay))
+
+  implicit val xoDecoder: Decoder[XmlOutput] =
+    Decoder.forProduct2(nameOf[XmlOutput](_.payload), nameOf[XmlOutput](_.delay))((pl, dl) =>
+      XmlOutput(pl, dl, pl.toNode.isTemplate)
+    )
+}
diff --git a/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/scenario/ScenarioEngine.scala b/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/scenario/ScenarioEngine.scala
index ea7d454c..4eb69f9b 100644
--- a/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/scenario/ScenarioEngine.scala
+++ b/backend/mockingbird/src/main/scala/ru/tinkoff/tcb/mockingbird/scenario/ScenarioEngine.scala
@@ -173,16 +173,21 @@ final class ScenarioEngine(
         dest.request.body.fold {
           rt.body(
             out match {
-              case RawOutput(payload, _)  => payload
-              case JsonOutput(payload, _) => payload.substitute(data).substitute(xdata).noSpaces
-              case XmlOutput(payload, _)  => payload.toNode.substitute(data).substitute(xdata).mkString
+              case RawOutput(payload, _) => payload
+              case JsonOutput(payload, _, isT) =>
+                if (isT) payload.substitute(data).substitute(xdata).noSpaces else payload.noSpaces
+              case XmlOutput(payload, _, isT) =>
+                if (isT) payload.toNode.substitute(data).substitute(xdata).mkString else payload.asString
             }
           )
         } { drb =>
           val bodyJson = out match {
-            case RawOutput(payload, _)  => Json.fromString(payload)
-            case JsonOutput(payload, _) => payload.substitute(data).substitute(xdata)
-            case XmlOutput(payload, _)  => Json.fromString(payload.toNode.substitute(data).substitute(xdata).mkString)
+            case RawOutput(payload, _)       => Json.fromString(payload)
+            case JsonOutput(payload, _, isT) => if (isT) payload.substitute(data).substitute(xdata) else payload
+            case XmlOutput(payload, _, isT) =>
+              if (isT)
+                Json.fromString(payload.toNode.substitute(data).substitute(xdata).mkString)
+              else Json.fromString(payload.asString)
           }
 
           rt.body(