Mandatory sub-lines
The 
  CancelOrRefund
 sub-line described below is mandatory when submitting a cancellation request.
CancelOrRefund
- This sub-line holds information about Payment modifications requests.
- You cannot submit partial cancellation modifications.
| Field # | Format | Required | Description | 
|---|---|---|---|
| 1 | Fixed value: SL |  | Record type identifier | 
| 2 | Numeric |  | SLsub-line record number reference within its parent line.The counter starts at 1, and it increments sequentially by one unit. | 
| 3 | Fixed value: CancelOrRefund |  | Transaction type. Defines the required field types for the specific sub-line. | 
| 4 | Alphanumeric |  | The original payment PSP reference. | 
FH,1.0,TEST,Company,TestCompany,Default,3,ws@Company.TestCompany,Modification,FileHeaderEchoData 
BH,1,BlockHeaderEchoData 
L,1,MerchantAccount,TestMerchant,CancelOrRefund,Test Product 3,EchoData 
SL,1,CancelOrRefund,8452147851579029
BT,1
FT,1