Hmm
The screenshot of add subscription screen is not in English, so I could not understand the input data. However, I think I see the issue now and it will require small modification to the code:
1. Open the file administrator/components/com_osmembership/model/subscription.php
2. Find this line of code (306 in latest version)
Code:
if ($isNew && !$row->amount && $rowPlan)
3. Change it to
Code:
if ($isNew && $row->amount === '' && $rowPlan)
Then try again, if you enter 0 into all amount fields, invoice should not be generated
Tuan
