| KMETH_ARGUMENT_READ_ONLY | Read-only arguments cannot be written to. |
| KMETH_INVALID_ACCESS_TYPE | Access to argument with a different type than during registration. |
| KMETH_INVALID_ARGUMENT_ID | Access to an invalid argument in a kernel method. |
| KMETH_INVALID_ARGUMENT_NAME | Access to argument with an invalid name in a kernel method. |
| KMETH_INVALID_CTYPE_LENG | Length of C type and ABAP type of an argument are not the same. |
| KMETH_INVALID_LENGTH_DECIMALS | Incorrect length or decimals when accessing an argument. |
| KMETH_INVALID_STRUCTURE_CTYPE | Access to argument with a different C type to during registration. |
