I need to generate case sensitive xml tags from dynamic internal table. The xml tag should show fieldnames stored in lowercase. The fieldname is stored in mapping table. If i keep the fieldname in uppercase, the xml output is coming perfectly fine. but if i change the fieldname to lowercase in the mapping table, a dump is being generated. The field SAPCODE if kept in capital letters, is working perfectly fine , but if kept in lowercase letters is throwing dump. Please go through the attachments. how to solve this issue. any help would be greatly appreciated.