InvoiceID for Integromat


I am exploring with Integromat and I wanted to create a task for emailing invoices however I get stuck with InvoiceID - am I right to assume that InvoiceID = Invoice Number in InvoiceNinja? If so I have a problem since our invoice no. looks like this: TEST-1/2018-15 which is {$clientIdNumber}/{$year}-{$counter} - Integromat seems to accept only numbers when inputing InvoiceID. Is there a way to get past this or is this not even the InvoiceID that Integromat wants?

The id and invoice number fields are separate.

Great. Is there a way to get the ID via the web UI?

The id is in the URL

Thank you.

Br, Ž