Hi Rumesha,

To enable this option you need to be defined as a Invoice Posting Authorizer and also you need to be a allowed authorizer for the posting proposal. If these two requirements are met Authorize/Acknowledge button will enable if you select the radio button Invoices to Authorize at the the top of the window Show Invoice section.

Hope this will help.

Regards,

Akila

Hi @Rumesha, 

To get Acknowledge/Authorize available in Posting Proposals the logged in user needs to have Multi Authorize in Invoice Posting Authorizer set to TRUE.

Following is the help text for Multi Authorize:

Multi Authorize
If this checkbox is selected, the authorizer will have access to authorize/acknowledge invoices in Posting Proposals window.

Best Regards, 

Linda

Thanks @lisvse and @Akila both the above tick boxes mentioned by both of you need to be ticked in order to make the option enable.