1. Go to Buymanager application settings > User, then click on create / modify user password
2. Key in the current password if you have one
3. Key in the new password
4. Key in once again the new password in confirmation
5. Click on apply 
1. Go to Buymanager application settings > User, then click on create / modify user password
2. Key in the current password if you have one
3. Key in the new password
4. Key in once again the new password in confirmation
5. Click on apply