diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
index 4764f8d400..91c69503c8 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/Common.kt
@@ -210,6 +210,7 @@ const val firstNameField = "first_name"
 const val lastNameField = "last_name"
 const val languageCodeField = "language_code"
 const val addedToAttachmentMenuField = "added_to_attachment_menu"
+const val allowsWriteToPMField = "allows_write_to_pm"
 const val isPremiumField = "is_premium"
 const val hasPrivateForwardsField = "has_private_forwards"
 const val hasRestrictedVoiceAndVideoMessagesField = "has_restricted_voice_and_video_messages"
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/ChatEvents/forum/WriteAccessAllowed.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/ChatEvents/forum/WriteAccessAllowed.kt
index 2d6a630f5b..78eab7af83 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/ChatEvents/forum/WriteAccessAllowed.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/message/ChatEvents/forum/WriteAccessAllowed.kt
@@ -1,12 +1,74 @@
 package dev.inmo.tgbotapi.types.message.ChatEvents.forum
 
+import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.ChatEvent
 import dev.inmo.tgbotapi.types.message.ChatEvents.abstracts.ForumEvent
 import dev.inmo.tgbotapi.types.webAppNameField
+import kotlinx.serialization.KSerializer
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
 
-@Serializable
-data class WriteAccessAllowed(
-    @SerialName(webAppNameField)
-    val webAppName: String? = null
-) : ForumEvent
+@Serializable(WriteAccessAllowed.Companion::class)
+sealed interface WriteAccessAllowed : ChatEvent {
+    val webAppName: String?
+        get() = null
+    val fromRequest: Boolean
+        get() = false
+    val fromAttachmentMenu: Boolean
+        get() = false
+
+    @Serializable
+    object Other : WriteAccessAllowed
+    @Serializable
+    data class FromWebAppLink(
+        override val webAppName: String
+    ) : WriteAccessAllowed
+    @Serializable
+    object FromRequest : WriteAccessAllowed {
+        override val fromRequest: Boolean
+            get() = true
+    }
+
+    @Serializable
+    object FromAttachmentMenu : WriteAccessAllowed {
+        override val fromAttachmentMenu: Boolean
+            get() = true
+    }
+
+    @Serializable
+    private class WriteAccessAllowedRaw(
+        val web_app_name: String? = null,
+        val from_request: Boolean = false,
+        val from_attachment_menu: Boolean = false
+    )
+
+    companion object : KSerializer<WriteAccessAllowed> {
+        override val descriptor: SerialDescriptor
+            get() = WriteAccessAllowedRaw.serializer().descriptor
+
+        override fun deserialize(decoder: Decoder): WriteAccessAllowed {
+            val raw = WriteAccessAllowedRaw.serializer().deserialize(decoder)
+
+            return when {
+                raw.web_app_name != null -> FromWebAppLink(raw.web_app_name)
+                raw.from_request -> FromRequest
+                raw.from_attachment_menu -> Other
+                else -> Other
+            }
+        }
+
+        override fun serialize(encoder: Encoder, value: WriteAccessAllowed) {
+            val raw = when (value) {
+                FromAttachmentMenu -> WriteAccessAllowedRaw(from_attachment_menu = true)
+                FromRequest -> WriteAccessAllowedRaw(from_request = true)
+                Other -> WriteAccessAllowedRaw()
+                is FromWebAppLink -> WriteAccessAllowedRaw(web_app_name = value.webAppName)
+            }
+            WriteAccessAllowedRaw.serializer().serialize(encoder, raw)
+        }
+
+        operator fun invoke(webAppName: String?): WriteAccessAllowed = webAppName ?.let(::FromWebAppLink) ?: Other
+    }
+}
diff --git a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebApp.kt b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebApp.kt
index b17a6a456c..383832ef14 100644
--- a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebApp.kt
+++ b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebApp.kt
@@ -15,6 +15,7 @@ external class WebApp {
 
     val headerColor: HEXColor?
     fun setHeaderColor(color: Color.BackgroundColor)
+    fun setHeaderColor(color: Color.Hex)
     val backgroundColor: HEXColor?
     fun setBackgroundColor(color: Color.Hex)
     fun setBackgroundColor(color: Color.BackgroundColor)
diff --git a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebAppUser.kt b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebAppUser.kt
index 9c8ac9431e..75a018e789 100644
--- a/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebAppUser.kt
+++ b/tgbotapi.webapps/src/jsMain/kotlin/dev/inmo/tgbotapi/webapps/WebAppUser.kt
@@ -20,6 +20,10 @@ external interface WebAppUser {
     val is_premium: Boolean?
     @JsName(photoUrlField)
     val photoUrl: String?
+    @JsName(addedToAttachmentMenuField)
+    val addedToAttachmentMenu: Boolean?
+    @JsName(allowsWriteToPMField)
+    val allowsWriteToPM: Boolean?
 }
 
 val WebAppUser.isPremium