Should you receive an error message like this when sending an SMS from PowerPro using ESendex:
It means your ESendex API password does not match what is currently set in PowerPro.
To fix this issue, login to the ESendex account and:
1 - Click on the relevant account in the bottom of the ESendex web page :
2 - Click on your username (email address on top right as per image below)
3 - Click on the Generate a new API password as per image below:
4 - Copy the new API to the clipboard and save it in ESendex:
5 - Update PowerPro SMS settings to reflect the new ESendex API (paste the API password):
While you are here, it's worth double checking the PowerPro SMS Username (email address) and Account Reference (EX.....) match what's in the ESendex web page.
6 - Log out and back in to PowerPro to test the new settings.