diff --git a/common-api/src/main/scala/pl/touk/nussknacker/engine/api/Comment.scala b/common-api/src/main/scala/pl/touk/nussknacker/engine/api/Comment.scala
index b4725fb750a..7bf312ac80a 100644
--- a/common-api/src/main/scala/pl/touk/nussknacker/engine/api/Comment.scala
+++ b/common-api/src/main/scala/pl/touk/nussknacker/engine/api/Comment.scala
@@ -6,13 +6,6 @@ final case class Comment private (content: String) extends AnyVal {
   override def toString: String = content
 }
 
-final case class NonEmptyComment private (content: String)
-
-object NonEmptyComment {
-  def from(comment: Comment): Option[NonEmptyComment] =
-    if (comment.content.isEmpty) None else Some(NonEmptyComment(comment.content))
-}
-
 object Comment {
 
   def from(content: String): Option[Comment] = {
diff --git a/designer/server/src/main/scala/pl/touk/nussknacker/ui/process/repository/ProcessRepository.scala b/designer/server/src/main/scala/pl/touk/nussknacker/ui/process/repository/ProcessRepository.scala
index 5b82149fe28..8592ad868ae 100644
--- a/designer/server/src/main/scala/pl/touk/nussknacker/ui/process/repository/ProcessRepository.scala
+++ b/designer/server/src/main/scala/pl/touk/nussknacker/ui/process/repository/ProcessRepository.scala
@@ -4,7 +4,7 @@ import akka.http.scaladsl.model.HttpHeader
 import com.typesafe.scalalogging.LazyLogging
 import db.util.DBIOActionInstances._
 import io.circe.generic.JsonCodec
-import pl.touk.nussknacker.engine.api.NonEmptyComment
+import pl.touk.nussknacker.engine.api.Comment
 import pl.touk.nussknacker.engine.api.deployment._
 import pl.touk.nussknacker.engine.api.process._
 import pl.touk.nussknacker.engine.canonicalgraph.CanonicalProcess
@@ -69,14 +69,13 @@ object ProcessRepository {
     val increaseVersionWhenJsonNotChanged: Boolean
     val labels: List[ScenarioLabel]
     val forwardedUserName: Option[RemoteUserName]
-    val comment: Option[NonEmptyComment]
     def id: ProcessIdWithName = ProcessIdWithName(processId, canonicalProcess.name)
   }
 
   final case class UpdateProcessAction(
       protected val processId: ProcessId,
       canonicalProcess: CanonicalProcess,
-      comment: Option[NonEmptyComment],
+      comment: Option[Comment],
       labels: List[ScenarioLabel],
       increaseVersionWhenJsonNotChanged: Boolean,
       forwardedUserName: Option[RemoteUserName]
@@ -91,9 +90,7 @@ object ProcessRepository {
       sourceEnvironment: String,
       targetEnvironment: String,
       sourceScenarioVersionId: Option[VersionId],
-  ) extends ModifyProcessAction {
-    override val comment: Option[NonEmptyComment] = None
-  }
+  ) extends ModifyProcessAction
 
   final case class AutomaticProcessUpdateAction(
       protected val processId: ProcessId,
@@ -102,9 +99,7 @@ object ProcessRepository {
       increaseVersionWhenJsonNotChanged: Boolean,
       forwardedUserName: Option[RemoteUserName],
       migrationsApplies: List[ProcessMigration]
-  ) extends ModifyProcessAction {
-    override val comment: Option[NonEmptyComment] = None
-  }
+  ) extends ModifyProcessAction
 
   final case class ProcessUpdated(processId: ProcessId, oldVersion: Option[VersionId], newVersion: Option[VersionId])
 
diff --git a/designer/server/src/test/scala/pl/touk/nussknacker/test/processes/WithScenarioActivitySpecAsserts.scala b/designer/server/src/test/scala/pl/touk/nussknacker/test/processes/WithScenarioActivitySpecAsserts.scala
index 3c425ae08f7..f50971ef79f 100644
--- a/designer/server/src/test/scala/pl/touk/nussknacker/test/processes/WithScenarioActivitySpecAsserts.scala
+++ b/designer/server/src/test/scala/pl/touk/nussknacker/test/processes/WithScenarioActivitySpecAsserts.scala
@@ -160,69 +160,6 @@ trait WithScenarioActivitySpecAsserts
     ScenarioActivitiesResponseWrapperForAddedAttachment(response)
   }
 
-  def verifyAttachmentAddedActivityExists(
-      user: String,
-      scenarioName: String,
-      fileIdPresent: Boolean,
-      filename: String,
-      fileStatus: String,
-      overrideDisplayableName: String,
-  ): ValidatableResponse = {
-    val fileJson = if (fileIdPresent) {
-      s"""
-        |"file": {
-        |  "id": "${regexes.digitsRegex}",
-        |  "status": "$fileStatus"
-        |}
-        |""".stripMargin
-    } else {
-      s"""
-         |"file": {
-         |  "status": "$fileStatus"
-         |}
-         |""".stripMargin
-    }
-    given()
-      .when()
-      .basicAuthAllPermUser()
-      .get(s"$nuDesignerHttpAddress/api/processes/$scenarioName/activity/activities")
-      .Then()
-      .statusCode(200)
-      .body(
-        matchJsonWithRegexValues(
-          s"""
-             |{
-             |  "activities": [
-             |    {
-             |      "id": "${regexes.looseUuidRegex}",
-             |      "user": "admin",
-             |      "date": "${regexes.zuluDateRegex}",
-             |      "scenarioVersionId": 1,
-             |      "additionalFields": [],
-             |      "type": "SCENARIO_CREATED"
-             |    },
-             |    {
-             |      "id": "${regexes.looseUuidRegex}",
-             |      "user": "$user",
-             |      "date": "${regexes.zuluDateRegex}",
-             |      "scenarioVersionId": 1,
-             |      "attachment": {
-             |        $fileJson,
-             |        "filename": "$filename",
-             |        "lastModifiedBy": "$user",
-             |        "lastModifiedAt": "${regexes.zuluDateRegex}"
-             |      },
-             |      "additionalFields": [],
-             |      "overrideDisplayableName": "$overrideDisplayableName",
-             |      "type": "ATTACHMENT_ADDED"
-             |    }
-             |  ]
-             |}
-             |""".stripMargin
-        )
-      )
-  }
-
   def verifyEmptyCommentsAndAttachments(scenarioName: String): Unit = {
     given()
       .when()