How to Change Welcome Message in Magento 2

Welcome message is shown in the top right of the header that includes the customer’s name when they logged in. However, with visitors who do not log in your store, a message “Default welcome msg” will be displayed automatically by default Magento 2; and it is impossible to change this default message. Hence, you should make sure that this welcome message have to be more attractive and eye-catching.

Magento 2 configuration allows modifying the welcome message easily by following the guides:

To change the welcome message:

Magento 2.0

• On the Admin sidebar, go Stores > Settings > Configuration.

Magento 2.1 or above

• On the Admin sidebar, go Content > Design > Configuration > Select your current theme > .

• Choose the storeview you want to change the welcome message.
• Under Action column, open the Edit mode.
• Scroll down and expand the Header section. Then, enter the Welcome Text that you want to appear.

• When everything’s done, click on Save Config.
• When prompting to update the Page Cache, click the Cache Management link at the top of the workspace. Then, follow the instructions to refresh the cache.

Ref: Magento 2 User Guide