If you import currency amounts from other software, the amount that can appear in a single field is usually restricted to a maximum of 16 characters. This total includes any decimal point or minus signs that are required to clearly specify the amount. If currency symbols, commas or other special characters appear in these fields when you import data, these symbols will contribute to the total length of each currency entry.
When you enter a currency amount, your software automatically inserts currency symbols and commas as necessary to make the amounts easier to read. Decimal points and two decimal places are also inserted in any currency field for which you didn’t specify a decimal amount. If you export currency amounts, any characters entered automatically in a currency field are counted to determine the length of the entry in that field. These entries will be exported successfully, as long as the total length of the entry doesn’t exceed 18 characters.