You might get an error message while trying to log in to ManySales account with your username and password as below:
Remember that you have installed ManySales via Shopify app store so we don't register your email and password. To enter ManySales, you could do that in 2 ways:
1. On the app page http://app.manysales.io > select Shopify icon > key in your Shopify domain to log in:
2. Log in to your Shopify dashboard > navigate for Apps > click on ManySales icon to enter the app:
In case you have further concerns, please contact us via our email firstname.lastname@example.org and our Support team will be in touch right away.