Task: Create an invoice in Google Sheets based on Typeform submission

n8n workflow JSON:
{"nodes":[{"name":"Typeform Trigger","type":"n8n-nodes-base.typeformTrigger","position":[450,300],"parameters":{"formId":"UXuY0A"},"credentials":{"typeformApi":""},"typeVersion":1},{"name":"IF","type":"n8n-nodes-base.if","position":[850,300],"parameters":{"conditions":{"number":[{"value1":"={{$node[\"Google Sheets\"].data[\"Severity\"]}}","value2":7,"operation":"larger"}]}},"typeVersion":1},{"name":"Google Sheets","type":"n8n-nodes-base.googleSheets","position":[650,300],"parameters":{"range":"Problems!A:D","sheetId":"17fzSFl1BZ1njldTfp5lvh8HtS0-pNXH66b7qGZIiGRU","operation":"append"},"credentials":{"googleApi":""},"typeVersion":1},{"name":"Send Email","type":"n8n-nodes-base.emailSend","position":[1050,400],"parameters":{"text":"=Email: {{$node[\"IF\"].data[\"Email\"]}}\nName: {{$node[\"IF\"].data[\"Name\"]}}\nSeverity: {{$node[\"IF\"].data[\"Severity\"]}}\n\nProblem:\n{{$node[\"IF\"].data[\"Problem\"]}}","subject":"User Reported Problem","toEmail":"","fromEmail":""},"credentials":{"smtp":""},"typeVersion":1},{"name":"Slack","type":"n8n-nodes-base.slack","position":[1050,200],"parameters":{"text":"=Email: {{$node[\"IF\"].data[\"Email\"]}}\nName: {{$node[\"IF\"].data[\"Name\"]}}\nSeverity: {{$node[\"IF\"].data[\"Severity\"]}}\n\nProblem:\n{{$node[\"IF\"].data[\"Problem\"]}}","channel":"problems","attachments":[],"otherOptions":{}},"credentials":{"slackApi":""},"typeVersion":1}],"connections":{"IF":{"main":[[{"node":"Slack","type":"main","index":0}],[{"node":"Send Email","type":"main","index":0}]]},"Google Sheets":{"main":[[{"node":"IF","type":"main","index":0}]]},"Typeform Trigger":{"main":[[{"node":"Google Sheets","type":"main","index":0}]]}}}