Bad Debt Provision in Days

Hi

As per settings in OB04, we can maintain bad debt provision for months only. eg., for 3 months 50% and for 6 months 100%.

But as per our requriement, we need to provide in days. like for 45 days 50% and 90 days 100%. Is there a way to configure the BDP provision methods in days? if so, how?

Please provide me the inputs.

Regards

Suresh