Reversal Message Format

This section describes this reversal message pair:

1420 / 1430 Messages - Reversals

This message pair is used to cancel a previously authorised transaction.

Elavon will respond positively to the requesting terminal, providing there are no obvious errors with the request, before sending a reversal message to the card scheme.

Field 48 (Additional Private Data) Tags 002 (Elavon STAN), 003 (Elavon Date and Time) and 004 (Elavon RRN) are required for a successful reversal of the authorisation by the scheme where available. These are the Elavon STAN, Elavon Date and Time, and Elavon RRN of the original authorisation request which are returned to the terminal or partner host system in the appropriate authorisation response. They are used by the card schemes to match with the original authorisation, and it is the responsibility of the terminal or partner host system to ensure these are faithfully returned in a reversal request. If unavailable (i.e. in the event of a Timeout) these fields are not required with the exception of Tag 003 which must be populated with the Date and Time of the original transaction being reversed.

Note: In the case of Pre-Authorisation Reversals; Tags 002, 003 and 004 are not available in the original Pre-Authorisation Response. To successfully reverse a Pre-Authorisation Field 38 (Approval Code) is required.
If Host Capture has been agreed, Tag 005 of Field 48 must contain the item number of the transaction to be reversed. It is the terminal or partner host systems responsibility to ensure that this item number is correct. If it exists in the current batch, it will be voided (and therefore not processed for funding) regardless of the other contents of the reversal request.
Furthermore, the appropriate scheme reference data returned in Field 63 of the approved authorisation response should be populated in Field 63 of the corresponding 1420 reversal.
If a 1430 is not sent in response to a 1420, a 1421 can be sent for a maximum of 3 attempts.

Field	Field Name	Required	Comments
	Message Type ID	Mandatory	1420 (or 1421 for repeat message).
	Primary Bitmap	Mandatory
2	PAN	Conditional	Present only if Field 35 (Track 2) is not provided.
3	Processing Code	Mandatory	See Field 3 description for valid values.
4	Transaction Amount	Mandatory	Amount should be related to the equivalent to 1100/1200/1220.
6	Cardholder Billing Amount	Conditional	Must be included if DCC has been performed on the device. The amount will be in the currency specified in Field 51. Same value as original 1100/1220.
10	Conversion Rate	Conditional	Required if Field 6 is present. Same value as original 1100/1220.
11	STAN	Mandatory	This is not the STAN of the original 1100/1220.
12	Transaction Local Date and Time	Mandatory	Date and time at the terminal.
14	Expiration Date	Conditional	Present only if Field 35 (Track 2) is not provided. Keyed transactions only. If supplied, should be the same value as in 1100/1220.
24	Function Code	Mandatory	Value of 400 (repeat messages from 401 to 403).
25	Reason Code	Mandatory
28	Reconciliation Date	Mandatory
29	Reconciliation Number	Mandatory
32	Acquiring Institution ID	Mandatory	Provided by Elavon.
35	Track 2 Data	Conditional	This field shall be supplied if a magnetic stripe card is swiped through the POS reader or an ICC card is read through an ICC device reader. If this filed is present, Fields 2 and 14 should not be populated.
37	Retrieval Reference Number	Mandatory	Unique partner transaction reference.
38	Approval Code	Mandatory	Approval Code from the original 1110/1230 response message.
41	Terminal Identification	Mandatory	Card Acceptor Terminal ID.
42	Merchant ID	Mandatory	A unique ID of establishment requesting the transaction.
43	Card acceptor Name / Address	Optional	Name/Address of establishment requesting the transaction.
48	Additional Private Data	Mandatory
49	Transaction Currency Code	Mandatory	ISO numeric currency code of the amount in Field 4. Same value as in corresponding 1100/1220.
51	Cardholder Billing Currency Code	Conditional	Required if Field 6 is present. ISO numeric currency code of the transaction amount specified in Field 6.
55	Integrated Circuit Card Data	Conditional	Must be supplied when the ICC has been used to process the transaction.
60	Reserved Private Data	Mandatory	If a partner supports DCC, Tag 01 (bytes 3 – 4) determine the number of supported currencies. Elavon will advise the partner of the appropriate values in Tag 01.
61	Reserved Private Data II	Conditional	Refer to Field Descriptions for available Tags.
63	Reserved Private Data III	Conditional	Refer to Field Descriptions for available Tags.
64	MAC	Conditional	Value calculated as described in Appendix B if MAC processing is supported.

Field	Field Name	Required	Comments
	Message Type ID	Mandatory	1430
	Primary Bitmap	Mandatory
2	PAN	Conditional	Present only if Field 35 (Track 2) is not provided. Keyed transactions only.
3	Processing Code	Mandatory	Echo value in 1420/1421.
4	Transaction Amount	Mandatory	Echo value in 1420/1421.
6	Cardholder Billing Amount	Conditional	Echo value if present in corresponding 1420/1421.
10	Conversion Rate	Conditional	Echo value if present in corresponding 1420/1421.
11	STAN	Mandatory	Echo value in 1420/1421.
12	Transaction Local Date and Time	Mandatory	Echo value in 1420/1421.
14	Expiration Date	Conditional	Echo value if present in corresponding 1420/1421.
24	Function Code	Mandatory	Echo value in 1420/1421.
25	Reason Code	Mandatory	Echo value in 1420/1421.
28	Reconciliation Date	Mandatory	Echo value in 1420/1421.
29	Reconciliation Number	Mandatory	Echo value in 1420/1421.
32	Acquiring Institution ID	Mandatory	Echo value in 1420/1421.
37	Retrieval Reference Number	Mandatory	Echo value in 1420/1421.
39	Response Code	Mandatory
41	Terminal Identification	Mandatory	Echo value in 1420/1421.
42	Merchant ID	Mandatory	Echo value in 1420/1421.
43	Card Acceptor Name / Address	Optional	Echo value if present in corresponding 1420/1421.
48	Additional Private Data	Mandatory
49	Transaction Currency Code	Mandatory	Echo value in 1420/1421.
51	Cardholder Billing Currency Code	Conditional	Echo value if present in corresponding 1420/1421.
55	Integrated Circuit Card Data	Conditional	Must be supplied when the ICC has been used to process the transaction.
63	Reserved Private Data III	Conditional	Returned where the solution supports Alphanumeric Terminal ID (Tag 20).
64	MAC	Conditional	Value calculated as described in Appendix B if MAC processing is supported.