Create Invoice Button Not Displaying in iSupplier Portal

Hello,

I do not see the Create Invoice button in the Finance tab when using the iSupplier Portal Full Access responsibility. I created a custom iSupplier Portal Full Access responsibility and made sure that the Create Invoices function is not excluded. I also added the following securing attributes on the custom responsibility with the following:

ICX_SUPPLIER_CONTACT_ID - Value = -9999

ICX_SUPPLIER_ORG_ID - Value = null

ICX_SUPPLIER_SITE_ID = -9999

Any ideas why it is not displaying?

Thanks,

Anthony