diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
index 45cce837350..1f836e8242a 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
@@ -79,6 +79,7 @@ import {
     getFontSizeDisplayValue,
     rightLeafOnlyNotBlockPath,
     lastLeaf,
+    isUnbreakable,
 } from './utils/utils.js';
 import { editorCommands } from './commands/commands.js';
 import { Powerbox } from './powerbox/Powerbox.js';
@@ -4983,10 +4984,11 @@ export class OdooEditor extends EventTarget {
                                 // Break line by inserting new paragraph and
                                 // remove current paragraph's bottom margin.
                                 const p = closestElement(sel.anchorNode, 'p');
-                                if (this._applyCommand('oEnter') === UNBREAKABLE_ROLLBACK_CODE) {
+                                if (isUnbreakable(closestBlock(sel.anchorNode))) {
                                     this._applyCommand('oShiftEnter');
-                                } else if (p) {
-                                    p.style.marginBottom = '0px';
+                                } else {
+                                    this._applyCommand('oEnter');
+                                    p && (p.style.marginBottom = '0px');
                                 }
                             }
                             textIndex++;
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
index 0fa2d8a6315..770f59c60d7 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
@@ -406,6 +406,24 @@ describe('Paste', () => {
                                   '<p>d[]<br></p>',
                 });
             });
+            it('should paste text and understand \\n newlines within UNBREAKABLE node', async () => {
+                await testEditor(BasicEditor, {
+                    contentBefore: '<div>[]<br></div>',
+                    stepFunction: async editor => {
+                        await pasteText(editor, 'a\nb\nc\nd');
+                    },
+                    contentAfter: '<div>a<br>b<br>c<br>d[]<br></div>',
+                });
+            });
+            it('should paste text and understand \\n newlines within UNBREAKABLE node(2)', async () => {
+                await testEditor(BasicEditor, {
+                    contentBefore: '<div><span style="font-size: 9px;">a[]</span></div>',
+                    stepFunction: async editor => {
+                        await pasteText(editor, 'b\nc\nd');
+                    },
+                    contentAfter: '<div><span style="font-size: 9px;">ab<br>c<br>d[]<br></span></div>',
+                });
+            });
         });
         describe('range not collapsed', async () => {
             it('should paste a text in a p', async () => {