In order to create a MapBuilder application, you will first need to create a web map. A web map is an interactive display of geographic information organized as layers. Afterwards, the MapBuilder template can be configured to the web map you created.

Learn more about creating a MapBuilder application here.

1. Create a web map by first clicking “Map” on the top menu. You will be brought to a default web map that you can customize.

2. From here, add an item to your web map by clicking “Add” and selecting “Search for Layers.” You will be able to browse available data layers and add them to your web map.

3. You will see your layers by default; any hosted feature layers you have created should be visible under “My Content.” Learn more about how to add data to an organizational ArcGIS Online account here. To add one of these layers to your web map, click the “+” icon on the bottom right of the layer. Click “My Content” to select a different source for browsing available data layers.

4. You can also browse available data layers from within your favorite layers, your organization layers or public ArcGIS Online layers. For instance, if you click “ArcGIS Online” and type “globalforestwatch,” official data layers shared by GFW will appear. Official GFW data are shared by GlobalForestWatch. To add one of these layers to your web map, click the “+” icon on the bottom right of the layer.

5. After adding your preferred data layers to the web map, you can modify how the data is visualized by clicking the change style icon. From here, you can change the style of the web map.

6. If you are using the “Types” draw style, you can click on the “Choose an attribute to show” drop-down menu to change which attribute is shown.
7. Select your preferred draw style. Use the “Types” draw style to visualize shapes based on attribute and click “Options” for advanced color editing options. Use the “Location” draw style to visualize all shapes in the same color.
8. Click “Done” once you are finished editing your data visualization.
9. You can also customize the fields shown in your web map pop-up windows. The pop-up windows indicate the fields that will be visible to the user when they click on a shape.
10. To customize pop-up windows, click on the “…” icon then click “Configure Pop-up.”

11. Click “Configured Attributes” to customize the attributes shown in your pop-up window.

12. Uncheck the fields that you don’t want to show in your pop-up window. You can also change how a field name is displayed by clicking on its “Field Alias” and entering a new name. adjust the field alias to change how the field name will be displayed.

13. Click “OK” when you are done configuring your pop-ups.
14. Once you are done creating and editing your web map, click “Save” on the top of the map and select “Save As.” Give your web map a name, any applicable tags and a summary, then choose where to save it and click “Save Map.”

15. To share your web map publicly, click “Share” and ensure “Everyone (public)” is activated. Once selected, click “Done.”

For more information on how to edit and modify a web map on ArcGIS Online, consult the ArcGIS documentation on creating and editing web maps.