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How to use Key Flex Fields (KFF) in forms

Posted on August 23rd, 2007 by Sanjit Anand |Print This Post Print This Post |Email This Post Email This Post

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These are the steps required to implement KFF in customization.

  • Define KFF fields in your database tables.

The custom table should contain a field named as XXX_ID (where XXX means the entity. For ex. PART_ID, CODE_COMBINATION_ID etc) to capture the selected code combination ID.

  • Register the table with Oracle AOL.
  • Register the KFF with Oracle AOL

Logon as

Application Developer -> Flex fields -> Key -> Register
Existing KFF can also be used. Ex. Accounting FF

  • Create KFF in the custom form

1. Create a form based on the custom table.

2. In the block, create two non-base table text items of data type CHAR (2000). One text item is to store the code combinations (Say BTL_KFF ) and other one is to store description of the code (Say BTL_KFF_DESC. Make this item as non-updateable).

  • Add KFF standard built-ins in the form to invoke KFF

    The custom table should contain a field named as XXX_ID (where XXX means the entity. For ex. PART_ID, CODE_COMBINATION_ID etc) to capture the selected code combination ID.

this is typical registration of KFF. For Customization in custom development here are the steps:

1. Write a form level trigger WHEN-NEW-FORM-INSTANCE to invoke the KFF as

Block => ‘block_name’,
Field => ‘concatenated_segments_field_name’,
[Description => ‘description_field_name’,]
[ID => ‘Unique_ID_field’
Appl_Short_Name => ‘application_short_name’,
Code => ‘key_flexfield_code’,
Num => ‘structure_number’,

In above defination take a note,

  • These arguments specify location
  • All fields must reside in same block
  • ID is for Key Flexfields only
  • These arguments indicate which flexfield is being used
  • Short name is application where flexfield is registered
  • SQLGL is Oracle General Ledger
  • SQLAP is Oracle Payables
  • Code identifies Key Flexfield
  • GL# is Accounting Flexfield
  • Num is Key Flexfield structure number. Default is 101


block => 'Custom block',
Field => 'BTL_KFF',
Description => 'BTL_KFF_DESC',
ID => 'XXX_ID',
Appl_short_name => 'SQLGL',
Code => 'GL#',
Num => '101',
name=Parent Values are not allowed\nN'

2. XXX_ID will store the code combination ID for each selection.

3.Invoke Flexfield functionality by calling FND_Flex.Event(event) from:


3. Write an item level trigger WHEN-NEW-ITEM-INSTANCE on BTL_KFF as


4. Write an item level trigger KEY-EDIT on BTL_KFF as


5. Write an item level trigger WHEN-VALIDATE-ITEM on BTL_KFF as


FND_MESSAGE.SET_STRING('You Have Selected An Undefined Code Combination !');

These steps makes you flexfield enable in your form.


Lets take a close scan to understand some of the paramater used in Flex Field defination.


  • This is used only for Key FlexFields only
  • “For_Insert” used in a block where the code_combinations table is the base table
  • “Full” used where the code_combination_id is a foreign key in the base table
  • “None” when any value is allowed, such a range flexfield for query purposes
  • “Partial” validates segment values but not the full combination
  • “Partial_If_Possible” only used when the flexfield has dependent segments

2.[Vdate => ‘date’,]

  • Validation date compared to segment value start/end dates


  • This is applicable only in the case for key flexfields only
  • ‘Y’ requires user to enter a valid value for every required segment, even if the flexfield is never navigated to
  • ‘N’ only requires required segments to be entered when the flexfield has been updated

4.[Displayable => ‘{ALL | flexfield_qualifier | segment_number} [\0{ALL|flexfield_qualifier|segment_number}]’,]

  • Key Flexfields only. Default is “ALL”
  • Naming flexfield qualifier or segment number causes only those segments to appear.
  • Toggle this parameter by specifying more than one value separated with \0
  • Display all but the first segment by specifying:
  • Same parameters for Updateable and Insertable

5.[COPY=>’block.field\n{ALL|flexfield qualifier|segment number} [\0block.field\n{ALL|flexfield qualifier|segment number}]’,]

  • Again, key flexfields only.
  • Copy a form field value into the segment indicated by flexfield qualifier or segment number
  • Value must be valid for segment or it will be erased
  • Copy works in reverse when flexfield pop-up window closes
  • Example copies a form global variable into the natural account segment of the Accounting Flexfield:
  • COPY=>’GLOBAL.default_expense_obj\nGL_ACCOUNT’

6.[VRULE => ‘flexfield qualifier\n
segment qualifier\n
{I[nclude] | E[xclude]}\n
NAME=Message Dictionary message name\n
Validation value1\n
Validation value2…
[\0flexfield qualifier\n

  • Key or range flexfields
  • Impose additional validation
  • ‘\n’ is delimiter between parameters
  • ‘\0’ is delimiter between groups of parameters

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Posted in AOL, Beginner | 2 Comments »Email This Post Email This Post | Print This Post Print This Post

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