Mapping payments in IIF to QBXML - intuit-partner-platform

Question

For having deprecated IIF, you'd think Intuit would make it easier to map the calls but I've found myself in something of a corner.
I have a fairly old script mapping our stuff to IIF.
!TRNS TRNSTYPE DATE ACCNT NAME AMOUNT DOCNUM MEMO CLEAR REP PAYMETH ADDR1 ADDR2 ADDR3 ADDR4
!SPL TRNSTYPE DATE ACCNT NAME AMOUNT DOCNUM MEMO CLEAR QNTY PRICE INVITEM PAYMETH EXTRA
!ENDTRNS
TRNS PAYMENT 1/21/2010 Paypal Account Dear Customer 1230.9 PAYPAL - Invoice123 N PAYPAL Dear Customer 123 Dear Dr
SPL PAYMENT 1/21/2010 Accounts Receivable Dear Customer -1230.9 Invoice123 PAYPAL - Invoice123 N PAYPAL
ENDTRNS
TRNS CHECK 1/21/2010 Paypal Account Paypal Account -29.84 Transaction Fees - Invoice123 N
SPL CHECK 1/21/2010 Fees:Paypal Fees Dear Customer 29.84 Transaction Fees - Invoice123 N
ENDTRNS
Now, I have a script that handles the customer and finding the right record in QB but I'm trying to find the right call to put all these records in. It looks like the first two can fit into ReceivePaymentAddRq but it's less clear on the second set.
Then I have another set that starts with BILL
TRNS BILL 5/15/2014 Accounts Payable Our Vendor -344.81 450608 N 6/14/2014 Net 30
SPL BILL 5/15/2014 Cost of Goods Sold:Purchases Dear Customer 344.81 450608 Invoice123 N
ENDTRNS
I think both fall under BillAdd but that COGS line could also fall under ChargeAdd

Answer 1

The transaction type PAYMENT would indeed be a ReceivePaymentAddRq. The CHECK type would be a CheckAddRq as you are not effecting an Accounts Receivable account. The transaction type of BILL would be a BillAddRq, as you are wanting to effect Accounts Payable. The ChargeAddRq is used for a customer charge, which is not the same as a CreditCardChargeAddRq.
It helps to have used QuickBooks manually a bit to understand the types of transactions that are used, but here's a quick little reference (these include the AddRq, QueryRq and ModRq where applicable). Note that this is not 100% as there are situations where you might use a different transaction type, but it's a good starting point:
Effect Accounts Receivable:
Invoice
ReceivePayment
Charge
CreditMemo
Effect Accounts Payable:
Bill
ItemReceipt
VendorCredit
BillPaymentCheck
BillPaymentCreditCard
Effect Bank Account:
Check
Deposit
Effect Credit Card Account:
CreditCardCharge
CreditCardCredit