In AX, we can define an EDT which string size's type is MEMO.
Memo is text type in SQL2000/2005 and can save 2GB data. Actually, we needn't use so big field in a table. But in futher, text type will be not used. So when we customize the AX, we need to consider it.
The standard max string size is 1000 in AX3
Please not use MEMO as possible.