Field Formats and Descriptions

The following table gives formats/descriptions for all fields included in Simplify Pay@Table messages.


Data Type = C refers to currency fields. These fields must include an explicit decimal point.

Field # Field Name Size Data Type Description
0001 Transaction Type 2 N Simplify Tran Type.
Always 39 for Pay@Table messages.
0002 Transaction Amount 1-14 C Total transaction amount (includes Tip if any).
0141 Currency Code 3 N 840=USD
0201 Tip Amount 1-14 C Entered or selected by customer.
Note that the POS must send this value separately in field 201 of the financial request.
5002 Device Serial Number 1-20 A/N PIN Pad serial number
5100 Message Type 2 A/N 01=Login
02=Get Check Info
05=Make Payment
06=Print Receipt
5101 Store ID 1-25 A/N Optional field; may be blank or missing
Only populated if a Store ID is defined under Simplify configuration.
5102 Employee ID 1-20 A/N Server ID
5103 Service Type 1 N Controls Simplify prompt displayed on the Get Check Information screen:
00=Table and Check Number
01=Check Number
5104 Tip Settings 3-101 A/N Can be sent in Login Response and/or Get Check Information Response. Login settings apply until the next login unless different settings are defined for a check in a Get Check Information Response. (If not sent in either message, defaults are used.)
Can contain Tip percentages, flag and text.
Format is a;b;cFSdFSe (FS = 1 byte field separator) where:
a, b, c – Tip percentages. (1 or 2 digits supported. Percentage sign is assumed.)
d – Tip flag. (Accepted in code, but not currently used. For Pay@Table, the flag in 5214 is used.)
e – Tip prompting text. (Up to 90 bytes. Can include \n to start a new line of text.)
All data is optional. Both semi-colons (;) are required, even if less than three percentages are present. First FS is required if flag is present; both are required if text is present. Code will accept FS as shown above even if d and/or e are null.
5105 Table Number 1-25 A/N Entered at prompt
5106 Check Number 1-20 A/N Entered at prompt or selected from list
5107 Merchant Receipt 1-2047 A/N Data for merchant receipt.
Receipt lines are separated by the pound sign (#). E.g. ## tells Simplify to print a blank line before beginning the next line. Text between any two # signs must be no more than 58 bytes.
Receipt lines are printed using left justification. For center justification, pad with spaces.
5108 Customer Receipt 1-2047 A/N Data for customer receipt. Same format as 5107.
5110 POS Response Code 2 N Response Code from POS:
Any other value=declined/error.
5111 POS Response Message 1-50 A/N Response Message from POS.
Displayed on PIN Pad.
5114 Check Information 1-2047 A/N Can be sent in Login Response.
Can be sent in Get Check Info Response.
Check Information sent in five subfields (separated by semicolons)
- Check number. (25 bytes maximum)
- Amount due (includes explicit decimal point; if negative, the check is a refund) (14 bytes maximum)
- Check receipt (5 bytes maximun)
- Employee ID (10 bytes maximum)
- Text data (30 bytes maximum)
See under Get Check Information Message for more information.
... Check Information 1-2047 A/N Information for each check is sent in a separate field. Up to 99 checks can be processed per table, using fields 5114 through 5212.
5213 Partial Payment Flag 1 N 0=Disabled; 1=Enabled
5214 Tip Flag 1 N Can be sent in Login Response and/or Get Check Info Response. Same transaction scope as 5104.
0=Tip Disabled
1=Tip Enabled. Prompt for Tip percentage (if percentages defined, else same as 2).
2=Tip Enabled. Prompt for Tip amount (text from field 5104 if sent; else default).
3=Tip Enabled. No prompting. Automatic gratuity (text from field 5104 if sent; else default).
5217 Type of Transaction 2 N Simplify Tran Type sent by the POS. Supported Tran Types are:
01=Auth Only
09=Return (should be sent if the check is a refund)
5218 Pay@Table Message
Reference Number
1-8 N Message number incremented for each Pay@Table request (from Simplify or POS) and returned in each response message (if any). Used to match requests and responses.
For Print Receipt messages, the Reference Number must match field 0007 in the preceding financial response.
5219 Pay@Table Session ID 1-50 A/N Used if necessary to recover the correct session. Sent in Login Response and all subsequent messages until logout/disconnect. Incremented for each Login Response.