In the NowSignage Power BI app, you may see the message "Embed Tokens Used: 100%".

Additionally, after granting access to a number of reports, you may see the error message as shown in the image below.

This message will display if you have generated the maximum number of tokens for your embed trial on your Power BI account.

Microsoft only allows a small number of embed tokens to be generated on it's shared capacity instances. 

To get additional embed tokens and add more reports to your NowSignage project, you'll need to refer to your Power BI vendor to choose the necessary dedicated capacity for your needs.

To find the right capacity for your business needs, we refer you to Microsoft's documentation.