diff --git a/common/apiBase.js b/common/apiBase.js
index 8e98493f5c..c836d11b47 100644
--- a/common/apiBase.js
+++ b/common/apiBase.js
@@ -1927,7 +1927,8 @@
 		};
 		this.CoAuthoringApi.onWarning                 = function(code)
 		{
-			t.sendEvent('asc_onError', code || c_oAscError.ID.Warning, c_oAscError.Level.NoCritical);
+			const error = undefined !== code ? AscCommon.mapAscServerErrorToAscError(code) : c_oAscError.ID.Warning;
+			t.sendEvent('asc_onError', error, c_oAscError.Level.NoCritical);
 		};
 		this.CoAuthoringApi.onMeta                    = function(data)
 		{
diff --git a/common/docscoapi.js b/common/docscoapi.js
index a67a4826a9..9b1ed75744 100644
--- a/common/docscoapi.js
+++ b/common/docscoapi.js
@@ -1102,7 +1102,7 @@
         } else if (code === c_oAscServerCommandErrors.NotModified) {
             this.onForceSave({type: c_oAscForceSaveTypes.Button, refuse: true});
 		} else {
-			this.onWarning(Asc.c_oAscError.ID.Unknown);
+			this.onWarning(AscCommon.c_oAscServerError.Unknown);
 		}
 	};
 	DocsCoApi.prototype._onForceSave = function(data) {
@@ -1512,7 +1512,7 @@
   };
 
   DocsCoApi.prototype._onWarning = function(data) {
-    this.onWarning(Asc.c_oAscError.ID.Warning);
+    this.onWarning(data.code);
   };
 
   DocsCoApi.prototype._onLicense = function(data) {
diff --git a/common/editorscommon.js b/common/editorscommon.js
index b433683f97..c1dd9d697f 100644
--- a/common/editorscommon.js
+++ b/common/editorscommon.js
@@ -1119,6 +1119,9 @@
 			case c_oAscServerError.ChangeDocInfo :
 				nRes = Asc.c_oAscError.ID.AccessDeny;
 				break;
+			case c_oAscServerError.ForcedViewMode :
+				nRes = Asc.c_oAscError.ID.ForcedViewMode;
+				break;
 			case c_oAscServerError.Storage :
 			case c_oAscServerError.StorageFileNoFound :
 			case c_oAscServerError.StorageRead :
@@ -1716,7 +1719,9 @@
 		VKeyKeyExpire:       -122,
 		VKeyUserCountExceed: -123,
 
-		Password: -180
+		Password: -180,
+
+		ForcedViewMode: -200
 	};
 
 	//todo get from server config
@@ -15444,6 +15449,7 @@
 	window["AscCommon"].openFileCommand = openFileCommand;
 	window["AscCommon"].sendCommand = sendCommand;
 	window["AscCommon"].sendSaveFile = sendSaveFile;
+	window["AscCommon"].c_oAscServerError = c_oAscServerError;
 	window["AscCommon"].mapAscServerErrorToAscError = mapAscServerErrorToAscError;
 	window["AscCommon"].joinUrls = joinUrls;
 	window["AscCommon"].getFullImageSrc2 = getFullImageSrc2;
diff --git a/common/errorCodes.js b/common/errorCodes.js
index ad3beadf02..38bd5b09c1 100644
--- a/common/errorCodes.js
+++ b/common/errorCodes.js
@@ -136,6 +136,7 @@
 			UserDrop : -100,
 			Warning  : -101,
 			UpdateVersion : -102,
+			ForcedViewMode : -103,
 
 			PrintMaxPagesCount : -110,