Using a Lightning App
1.Create a Lightning application by following the "Create Lightning Apps" guide.

2.In the "App Options" section of the App Settings, select Desktop and phone or Phone under "Supported Form Factors".

3.Click Save.

4.Click "Navigation Items" and move the required objects or pages from Available Items to Selected Items.

5.Use the up and down arrows in the Selected Items list to sort them as you need.

6.Click Save.

7.Click "User Profiles" and move the required profiles from Available Profiles to Selected Profiles.

8.Click Save.

Using the Mobile Only App
Notes:

• Each user must configure these settings individually. Administrators cannot configure these settings for all users on their behalf.
• Users should be able to switch to Salesforce Classic.
• These steps are based on the current behavior and may change in future updates.

1) Add Smart Search Items
Since objects like Accounts, Opportunities, and custom objects are included under Smart Search Items, If you need sort these objects, you must add this component to enable sorting.

1.Log in to Salesforce via a desktop browser as an system administrator.

2.Go to Setup > Apps > Mobile Apps > Salesforce > Salesforce Navigation.

3.Move "Smart Search Items" from Available to Selected.

Note: If Smart Search Items is placed at the top, the objects within it will appear in the navigation bar.

4.Click Save.

2) Sort Smart Search Items
1.Log in to Salesforce via a desktop browser as the user.

2.Click your user icon in the top right and select "Switch to Salesforce Classic".

3.Click the "Search..." bar at the top and execute a search without entering any text.

4.In the object list on the left, hover over the items you want to keep visible and click the Pin icon to pin them.

5.Click the pin and then rearrange them in any order using "Pin to Top".

6.Click Save.