Using the techniques described in Chapter 4, Configuring to Sell, build and assign the emails that will be sent to customers who purchase, register, and subscribe to newsletters.

The primary thing you need to do for invoice and packing slips is to upload an appropriate logo as a substitute for the default Magento logo. Upload the logo you wish to use for PDF print-outs and on-screen views in the Sales | Sales | Invoice and Packing Slip Design panel.

Don't overlook this little item! You'd be surprised how many Magento-powered websites we visit that still show the Magento logo. To upload your own favicon, go to the General | Design | HTML Head panel under Stores | Configuration.

For products that have no image, Magento inserts default placeholder images. You can create your own — perhaps with your own company's logo — to use instead of the default images with the Magento logo.

To upload your own versions, go to the Stores | Configuration | Catalog | Catalog | Product Image Placeholders panel. Use images similar in size to those that your theme design uses for regular product images.

When you first install Magento, a CMS page is automatically created for use when a visitor tries to access a non-existent page. This default page, as shown in the following screenshot, is not bad, but you may want to update the banner images and, perhaps, provide even better information to visitors as to what they can do to find the correct page.

You may want to modify the layout to include a sidebar of categories. It might also be helpful to show your telephone number in large numbers if you want customers to call you for help.