`description` LONGTEXT,
`credit_type_code` varchar(80) default NULL,
`debit_type_code` varchar(80) default NULL,
+ `credit_number` varchar(20) NULL DEFAULT NULL COMMENT 'autogenerated number for credits',
`status` varchar(16) default NULL,
`payment_type` varchar(80) default NULL, -- optional authorised value PAYMENT_TYPE
`amountoutstanding` decimal(28,6) default NULL,