In CSI, all the COD articles and VP articles are treated as normal articles. Be cautious about COD articles because you have to change the article status and add the COD/VP amount before invoicing to the beat or to the BOs. If any insured article is received as normal then you have the option to make as insured also.
You can change the article type if any article is received as a speed but actually, it is a registered article (In CSI, sometimes it happens so, speed article may be invoiced in a registered bag or vice versa).
In some cases, you may have invoiced the article to the beat but it is not showing in the delivery slip and if you find the article, it might show as taken out for delivery. In such cases, you can change the Article Status as Received in the same option.
Once all the post offices are migrated to CSI then this option may becomes redundant.