Merge pull request #35145 from frappe/data-import-issue

fix: validate import columns only if type is insert

frappe/core/doctype/data_import/importer.py

@@ -647,7 +647,8 @@ class ImportFile:
 		elif extension == "xls":
 			data = read_xls_file_from_attached_file(content)
 
-		self.validate_columns_of_import_file(data)
+		if self.import_type == INSERT:
+			self.validate_columns_of_import_file(data)
 		return data