509Originating Company ID Number
A unique number identifying the company initiating the funds transfer instructions. The first character is a one-digit ANSI identification code designation (ICD) followed by the nine-digit identification number which may be an IRS employer identification number (EIN), data universal numbering system (Duns), or a user assigned number. The ICD for an EIN is 1, Duns is 3, user assigned number is 9.
数据类型AN
必须?Optional
长度Min 10 / Max 10