D365: Loading applets issue while connecting to Microsoft Dynamics 365 for Operations through Excel add-in

Recently, I have had an issue with the Microsoft Dynamics Office Add-in. Instead of having the window with ability to select Design, I noticed only Load applets button.

At the time of loading applets, the following error came up: “No applet registrations found”.

To solve this issue, just navigate to System administration > Setup > Office app parameters.

In the App parameters fast tab, click Initialize app parameters button.

In the confirmation dialog box, click OK.

App parameters will be initialized.

In the Registered applets fast tab, click Initialize applet registration button.

In the confirmation dialog box, click OK.

Registered applets will appear.

Now, just click Insert -> My Add-ins again. Connect to the Microsoft Dynamics 365 for Operation. You will not see any issues any more.

That’s it!