Close the browser and re-open to close the message.Or1) Edit the application item and change the purpose to Configurable (instead of ready-to-use) and then save.2) Edit the item again and paste in sample json (below) in 'Configuration Parameters'.3) Create a new application from this updated item.When the user clicks the Done button, the page redirects back to the Item Details page. The option in the configuration panel to change the web map is displayed.Sample json to paste in:{ "configurationSettings": [ { "category": "", "fields": [ { "type": "webmap" } ] } ]}