Send multiselect values individually

I’m trying to integrate GF with Salesforce (web-to-lead) using Webhooks addons, everything works, but i have a problem with multi-select fields.
GF output multi select fields as a single field:
field=value1, value2, value3 etc…

But Salesforce servlet need to receive it individually

Could you give me some hints how to get it through GF or Webhooks?

Also is there a way to change “comma” with “semicolon” to separate values ? I will try it also.

You could use the filter to modify the data before it is sent anywhere. You can convert it to a form more suitable for Salesforce WTL.