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Hi there,
I'm trying to dynamically append values to a list parameter using the 'Parameter Preset' box when certain conditions are met for a transitional route.
The list parameter is defined as follows:
Then, during the route I use the following system function:
$sys.func.APPEND($session.params.negative_products, credit score)
However, when the condition is met during the conversation, the updated value in $session.params.negative_products is not: [" ", credit score], but prints out the whole text in the parameter preset box, e.g., $sys.func.APPEND($session.params.negative_products, credit score).
Why is this the case? I thought system functions were able to be used to dynamically change values in parameter presets and I have no idea why it just keeps on printing out the function as a string!
Any help would be much appreciated,
Vicky
Solved
1 ACCEPTED SOLUTION
Hey!
When referencing the parameter in my fulfilment I use:
$session.params.negative_productsI did figure a workaround yesterday. I realised when I define $session.params.negative_products within the 'Entry Fulfilment', 'Parameter Presets' section of the page the appending works:
1. Define empty list parameter in presets of the Entry Fulfilment, i.e., before I want to append to the list:
2. During a conditional route, append to the empty list using system functions in the parameter presets with the following command:
$sys.func.APPEND($session.params.negative_products, "credit score")
3. This then prints out the correct output when referencing $session.params.negative_products:
" , credit score"
I think my original issue was that when trying to define $session.params.negative_products as a 'isList' parameter, it wasn't actually generating a list per se. So, when I was trying to call it in $sys.func.APPEND(), the function wasn't reading the $session.params.negative_products as a list, and as a result, just printed out the system command.
Hope this helps other users who get faced with a similar issue!
Vicky
