Field K4-1RequiredIdentification Fields

    Metro 2 Field K4-1: K4 Segment Identifier

    Constant value identifying the appended segment as a K4 (Specialized Payment Information). Used to report deferred-payment, balloon, and similar special payment arrangements.

    Quick Reference

    Field Number:K4-1
    Position:1-2
    Length:2 characters
    Type:alphanumeric
    Record:K4 Segment
    Required:Yes

    Allowed Values

    ValueMeaning
    K4K4 segment identifier

    Validation Rules

    • Must contain the literal value K4
    • Used when special payment terms apply

    Examples

    K4

    Common Errors

    • K4 used where standard terms fully describe the account

    Tips & Best Practices

    • Use K4 only when standard term fields cannot express the arrangement

    Related Fields

    K4-2
    K4 Specialized Payment Indicator
    Single-character code describing the type of specialized pay...
    K4-4
    K4 Balloon Payment Amount
    The dollar amount of a balloon payment due at the end of the...

    Other Identification Fields

    1Record Descriptor Word2Processing Indicator4Consumer Account Number3Identification NumberH-2Record Identifier (Header)H-3Cycle Identifier

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    K4 Segment Identifier - Metro 2 Field K4-1