Package signature change in payment application does not allow to create invoice with invoice workbe

Hi,

Is it necessary to license Payments (IBY) to use Payables Invoice workbench?

We have been using AP for many years few days ago after applying RPC5 patch selecting date for Invoice Date and some other fields are throwing below error and not allowing to continue with invoice creation.

I found MOS note 1966007.1 Which gives solution to solve the problem. The note says to license the product and recompile all objects.

But the note does not details how to undo the licensing if this product is not originally a licensed product.

I would like to know.

If IBY should be licensed as well with payable ?