Letter of credit on Sales

Question

Hello Guru's,
We have the following requirement:
In Perú, apart from the Invoice Document I need to give to the customer some Letter of Credits (LOC) that represent the 100% of the invoice value. The customer or bank will make the payment to us clearing the letter of credit, not the invoice. So I need to create a process that reverse the invoice and create n letter of credit assigned to the original invoice for the customer. Depending on the payment terms I can have 3 letters of credit for 1 invoice.
Example:
1.     Sales Order 1: Net value 900 USD (Payment terms 90 days)
This sales order must have assigned 3 letters of credit that sum the total sales order amount (900 USD):
a.     Letter of Credit 1: Net Value: 300 USD, payment terms 30 days
b.     Letter of Credit 2: Net Value: 300 USD, payment terms 60 days
c.     Letter of Credit 3: Net Value: 300 USD, payment terms 90 days
2.     Invoice 1 Net value 900 USD (Payment terms 90 days)
Accounting Document Invoice 1:
                        D           H
Customer Account       12XXXXX1                                 990
VAT              4XXXXXXX                90
Sales              7XXXXXXX                900
Actually the following documents are created automatically after invoice creation according to the Letter of credit parameters set in sales order. (This process is done in their actual legacy, not in SAP, we need to replicate the process in SAP)
Accounting document Letter of credit 1:
Letter of Credit account        12XXXXX2               330
Customer Account                12XXXXX1              330
Accounting document Letter of credit 2:
Letter of Credit account        12XXXXX2               330
Customer Account                12XXXXX1              330
Accounting document Letter of credit 3:
Letter of Credit account        12XXXXX2               330
Customer Account                12XXXXX1              330
To sum up: For this example the system must create 4 documents during invoice process.
A.      Invoice 1 for 990 USD
B.     Letter of Credit 1 for 330 USD
C.     Letter of Credit 2 for 330 USD
D.     Letter of Credit 3 for 330 USD
All the documents impression will be sent to the customer. They create Letter of Credits to replace the invoice because legally there are more secure for payment. The payment of the customer must clear the Letter of Credit (The Customer account of the invoice were cleared by the letter of credit)
What solution do you recommend for this requirement? I was thinking to develop a USER EXIT on accounting document invoice creation to create additional FI documents for the LOCs required.
Thanks for your help.
Best Regards,
Pablo

Answer 1

Hello Pablo,
I had the same situation in Chile. I had to make the procedure manually because:
- I could not determine with which Banks I was going to use for the LoC
- I don't know the amount to be paid in each LoC
- I don't know the payment terms for each LoC.
- The LoC currency was not always the same
If you solve these problems, may be a Z report which reads the Payment Method and a BAPI for GL document creation could help you, but its very complex.
Kind Regards