Solution : https://service.sap.com/sap/support/notes/516900 (SAP Service marketplace login required)
Key words :
'long text' tab page, online dump raise_exception, standard network template, support package, system generates, type not_found, include lcobsu13, function co_bt_affl_read_with_key, transaction cn21, terms affl
Related Notes :
| 513177 | CN21: Settlement rule is not generated |