Dunning letter BG

Question

I would like to display 4 levels in script for dunning letter BG for Bank Guarantee.
Bank Guarantee Dunning letters (BGDL) are reminders that are sent out to customers with overdue and outstanding Bank guarantees.
In KONE Germany 4 dunning levels will be used; the 4 th dunning level represent the legal level.
Officially Germany has only 3 dunning levels for output but use the 4 dunning level plus a manual to-be enter dunning block, to track the legal cases.
The first dunning letter will be sent out to the customer (AR) if he has outstanding BG that are overdue.
Dunning level 2 will be used for outstanding open items that are 14 days overdue.
Dunning level 3 will apply to outstanding open items that are 28 days overdue.
Dunning level 4 represent the legal dunning after 42 days overdue and special dunning block after given to layer or collection agency. No dunning print out.
I copied standard script and doing changes .
Configuration location is given below.
Financial Accounting > Accounts Receivable and Accounts Payable > Business Transactions > Dunning > Dunning Procedure > Define Dunning Procedures (F150)
u2022     Program Name: RIPRJT00 and form name  F150_BE_DUNN_01.
Any body knows dunning letter form user want to display form in 4 levels .
1st level contain different infomation
2nd level contain different information
3rd level contain different information
4th level contain different information
user is creating test data for each form when he select first level it should trigger first level dunning information same way all levels.
Which base it will trigger I am thinking it will trigger by text element
1st level text element 511
2nd level text element 512
3rd level text  element 513
4th level text element 514
Please suggest me the logic for doing.

Answer 1

We have customized Dunning Letter
It used to work perfectly sometime back ...I dont know what went wrong suddently it is giving error when tried to run Custom Dunning Letter Print gving error "The file cannot be opened because it has no pages." [/b
Not able to understand what might be wrong??
I checked data for one customer in EBS (Customers>Customer Standard>Input customer number (xxxxxx)>Button Find>Button Ok>Button Open>Tab Characteristics) Even though in EBS form I saw that Language field contains value but respective field in DB was empty.
My question when we run Dunning Letter from which level does oracle picks up the language??
Is it from Address level of the customer??
We have different environments which are clones of production. when I tried to run Dunning Letter in DEV environment which is used for building and testing which was a recent clone of production, it worked for me...not able to understand why it is not working in production??
Best, KK