Auto Fill from Joomla Registration

How do I have the form autofill from Joomla registration information?

Thanks

Hi

1. Go to Joom Donation -> Configuration, find the config option "Integration", set it to "Joomla Profile"

2. Go to Joom Donation -> Custom Fields, click on custom field to edit. You will see a dropdown called Field Mapping. Select the field in Joomla profile will be mapped with this field

After that, check it again, it should work as expected

Tuan