Disabling the Button in Ap invoice through custom pll

Question

Hi
i have done one customization in ap invoices , such way that
in supplier screen --> organization tab--> created the DFF for the supplier limit say 4000
now in ap invoices screen, now i creating the PREPAYMENT, if the amount exceed that 4000, it will create hold, i written code for that
now my problem is in HOLD TAB Release button is there,
my requirement is RELEASE BUTTON SHOULD BE DISABLED until the until the amount is not rectified.
in custom pll
if form_name = 'APXINWKB' then
if block_name = 'AP_HOLDS' then
if event_name = 'WHEN-NEW-RECORD-INSTANCE' then
l_invoice_id := name_in('INV_SUM_FOLDER.INVOICE_ID');
l_release_hold :=xxcus.AKRUTI_PAYABLES_PKG.release_single_hold(l_invoice_id);
if l_release_hold = 1 then
fnd_message.set_string('Check the Advance amount enter greater than Supplier Limit or Advance amount greater than Purchase Order amount');
fnd_message.show;
set_item_property('APXHOLDS.AP_HOLDS_CONTROL.ACTION_BUTTON',ENABLED,PROPERTY_FALSE);
elsif l_release_hold = 0 then
set_item_property('APXHOLDS.AP_HOLDS_CONTROL.ACTION_BUTTON',ENABLED,PROPERTY_TRUE);
end if;
end if;
end if;
end if;
the release button is not diabling since in the AP INVOICES forms, HOLDS is IN OBJECT GROUPS of that form the HOLD forms is APXHOLDS, how to disabled the button,
it showing the message"'Check the Advance amount enter greater than Supplier Limit or Advance amount greater than Purchase Order amount"
but it is not disabling the button

Answer 1

are you using 11.5.10? If you are why not try the personalization features?