At the moment I am a bit confused.
First you showed a redirect link with the parameter ID1, but in your sample survey it is PSID.
1. Okay, the panel provider adds a parameter to the survey link like this
https://www.examp..le.de/lime6/index.php/313656?lang=en&
PSID=123456
So, please, clarify how this added parameter is called.
2. You grab this parameter using "panel integration". This is fine in your sample. Now the value (123456) is stored in this target question.
3. In the redirect links you have to insert this value, again as added parameters.
https://dkr1.ssi...s.com/projects/end?rst=1
&psid={PSID}&basic=93268
You called this target question of the panel integration "PSID" (you are free how to call it) and the passed parameter also is called "psid".
Of course you have to use curly brackets. Here you use Expression Manager to insert the value of your target question,
www.limesurvey.org/manual/Expression_Man...#Access_to_variables
But what about this second parameter? You called it ID2 resp. PID?
What is it needed for? There is no reference to it in the redirect links.
Joffm
And something off-topic:
In my opinion
Ich befürchte, dass bei elektronischen Zahlungen zu viele persönliche Informationen über mich gesammelt werden.
is better than
Ich befürchte, dass elektronische Zahlungen zu viele persönliche Informationen über mich sammeln.
"Die Zahlung selbst sammelt nicht."