Solution : https://service.sap.com/sap/support/notes/385174 (SAP Service marketplace login required)
Key words :
message_type_unknown short dump occurs, additional key words me21nbas_namebas_settings, specific address checks, t100c customizing table, unacceptable '-' message type, table t100c, message table, message type, message type '-', warning message
Related Notes :
| 629833 | "No calculation procedure assigned to country" warning |
| 146565 | Address data truncated in forms/EDI/ALE |