diff --git a/apps/spreadsheeteditor/mobile/src/controller/CellEditor.jsx b/apps/spreadsheeteditor/mobile/src/controller/CellEditor.jsx
index 1170be25bd..06db117bfd 100644
--- a/apps/spreadsheeteditor/mobile/src/controller/CellEditor.jsx
+++ b/apps/spreadsheeteditor/mobile/src/controller/CellEditor.jsx
@@ -6,16 +6,23 @@ const CellEditor = props => {
     useEffect(() => {
         Common.Notifications.on('engineCreated', api => {
             api.asc_registerCallback('asc_onSelectionNameChanged', onApiCellSelection.bind(this));
+            api.asc_registerCallback('asc_onSelectionChanged', onApiSelectionChanged.bind(this));
         });
     }, []);
 
     const [cellName, setCellName] = useState('');
+    const [stateCoauth, setCoauthDisabled] = useState(null);
 
     const onApiCellSelection = info => {
         setCellName(typeof(info)=='string' ? info : info.asc_getName());
     };
 
+    const onApiSelectionChanged = info => {
+        setCoauthDisabled(info.asc_getLocked() === true || info.asc_getLockedTable() === true || info.asc_getLockedPivotTable()===true);
+    }
+    
     return <CellEditorView cellName={cellName}
+                           stateCoauth = {stateCoauth}
                            onClickToOpenAddOptions={props.onClickToOpenAddOptions}/>
 };
 
diff --git a/apps/spreadsheeteditor/mobile/src/view/CellEditor.jsx b/apps/spreadsheeteditor/mobile/src/view/CellEditor.jsx
index 9367e06a93..9e914b4bda 100644
--- a/apps/spreadsheeteditor/mobile/src/view/CellEditor.jsx
+++ b/apps/spreadsheeteditor/mobile/src/view/CellEditor.jsx
@@ -23,7 +23,7 @@ const CellEditorView = props => {
     return <View id="idx-celleditor" style={viewStyle} className={expanded?'expanded':'collapsed'}>
                 <div id="box-cell-name" className="ce-group">
                     <span id="idx-cell-name">{props.cellName}</span>
-                    <a href="#" id="idx-btn-function" className='link icon-only' disabled={!isEdit && true} onClick={() => {props.onClickToOpenAddOptions('function', '#idx-btn-function');}}>
+                    <a href="#" id="idx-btn-function" className='link icon-only' disabled={(!isEdit && true) || props.stateCoauth} onClick={() => {props.onClickToOpenAddOptions('function', '#idx-btn-function');}}>
                         <i className="icon icon-function" />
                     </a>
                 </div>