function not available to this responsibility

Hi,

I am using Apps 12.2.4

I have written a code in CUstom.pll and want to enable the zoom functionality.

In zoom functionality simply calling a DFF form using below code:

IF (param_to_pass1 = 'BE') THEN

         lc_dff_id := NAME_IN('RGW_FOLDER.CASH_RECEIPT_ID');

     IF lc_dff_id IS NULL THEN

      /* Disallow user to proceed since the CASH_RECEIPT_ID of the parent record is not yet created since the

         parent record is not yet saved.

         CASH_RECEIPT_ID of the parent table i.e. AR_CASH_RECEIPTS_ALL relates the child table CLE_AR_CASH_RECEIPTS_EXT.