Hey Nicolas,
Thanks for reaching out here. The payments should be marking as “complete” once the transactions go through successfully on PayPal’s end of things.
1. I noticed that you posted some system information here. Unfortunately much of the information was cut off, and does not include the full information text. To help us investigate your issues, can you first post the COMPLETE system information block to this thread? Here is how to do that → https://theeventscalendar.com/knowledgebase/sharing-sys-info/
If possible, don’t edit the block or remove info from the block (other than to obscure license keys, for example, like you did originally).
2. Next, you mention using PayPal Sandbox…to be clear, are the “Still pending” orders you are describing ones that were processed with the Sandbox still being active? In other words, are thing still in Sandbox mode and test mode? Or are you now NOT in Sandbox any longer, and are trying to really process real payments?
3. Just to be clear, does any payment ever get to Complete? Or does literally every attempted payment end up as Pending?
Thanks!
George