Hi Jon 
Here’s the full workflow (with pinned data edited to replace with fake data)
{
"name": "MW Init",
"nodes": [
{
"parameters": {},
"id": "990f9687-4176-4b6e-ba7c-0e837e8bf8ca",
"name": "Start",
"type": "n8n-nodes-base.start",
"typeVersion": 1,
"position": [
175,
235
]
},
{
"parameters": {
"method": "POST",
"url": "https://base.merchantwarrior.com/partner/",
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "method",
"value": "addMerchant"
},
{
"name": "partnerUUID",
"value": "1234567890"
},
{
"name": "apiKey",
"value": "1234567890"
},
{
"name": "merchantCompanyLegalName",
"value": "={{ $json[\"body\"][\"merchantCompanyLegalName\"] }}"
},
{
"name": "merchantCompanyTradingName",
"value": "={{ $json[\"body\"][\"merchantCompanyTradingName\"] }}"
},
{
"name": "merchantCompanyRegNumber",
"value": "={{ $json[\"body\"][\"merchantCompanyRegNumber\"] }}"
},
{
"name": "merchantIndustry",
"value": "={{ $json[\"body\"][\"merchantIndustry\"] }}"
},
{
"name": "merchantWebsite",
"value": "={{ $json[\"body\"][\"merchantWebsite\"] }}"
},
{
"name": "merchantCountry",
"value": "={{ $json[\"body\"][\"merchantCountry\"] }}"
},
{
"name": "merchantState",
"value": "={{ $json[\"body\"][\"merchantState\"] }}"
},
{
"name": "merchantCity",
"value": "={{ $json[\"body\"][\"merchantCity\"] }}"
},
{
"name": "merchantStreet",
"value": "={{ $json[\"body\"][\"merchantStreet\"] }}"
},
{
"name": "merchantPostcode",
"value": "={{ $json[\"body\"][\"merchantPostcode\"] }}"
},
{
"name": "merchantTimezone",
"value": "={{ $json[\"body\"][\"merchantTimezone\"] }}"
},
{
"name": "merchantContactName",
"value": "={{ $json[\"body\"][\"merchantContactName\"] }}"
},
{
"name": "merchantContactEmail",
"value": "={{ $json[\"body\"][\"merchantContactEmail\"] }}"
},
{
"name": "merchantContactPhone",
"value": "={{ $json[\"body\"][\"merchantContactPhone\"] }}"
},
{
"name": "merchantContactMobile",
"value": "={{ $json[\"body\"][\"merchantContactMobile\"] }}"
},
{
"name": "merchantBillingContactName",
"value": "={{ $json[\"body\"][\"merchantBillingContactName\"] }}"
},
{
"name": "merchantBillingContactEmail",
"value": "={{ $json[\"body\"][\"merchantBillingContactEmail\"] }}"
},
{
"name": "ddSettlementAccountName",
"value": "={{ $json[\"body\"][\"ddSettlementAccountName\"] }}"
},
{
"name": "ddSettlementAccountBSB",
"value": "={{ $json[\"body\"][\"ddSettlementAccountBSB\"] }}"
},
{
"name": "ddSettlementAccountNumber",
"value": "={{ $json[\"body\"][\"ddSettlementAccountNumber\"] }}"
},
{
"name": "ccSettlementAccountName",
"value": "={{ $json[\"body\"][\"ccSettlementAccountName\"] }}"
},
{
"name": "ccSettlementAccountBSB",
"value": "={{ $json[\"body\"][\"ccSettlementAccountBSB\"] }}"
},
{
"name": "ccSettlementAccountNumber",
"value": "={{ $json[\"body\"][\"ccSettlementAccountNumber\"] }}"
},
{
"name": "cardAcceptorName",
"value": "={{ $json[\"body\"][\"cardAcceptorName\"] }}"
},
{
"name": "merchantCategoryCode",
"value": "={{ $json[\"body\"][\"merchantCategoryCode\"] }}"
},
{
"name": "hash",
"value": "={{ $json[\"body\"][\"hash\"] }}"
}
]
},
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "MW-API-VERSION",
"value": "2.0"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{}
]
},
"options": {}
},
"id": "7f8f3e71-dfc7-44bd-8126-1ae5c9d483d3",
"name": "HTTP Request",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
660,
400
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "mwinit",
"options": {}
},
"id": "66ab2e07-5d6f-4df4-87cf-4a6def6e51bc",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
-40,
400
],
"webhookId": "c6d6a872-4c2e-4d8e-8225-4faa56ce388d"
},
{
"parameters": {
"value": "=0cfab45877bc72b258e79c12998b54476348e9bbd51b4{{$node[\"Webhook\"].json[\"body\"][\"merchantCompanyLegalName\"]}}{{$node[\"Webhook\"].json[\"body\"][\"merchantCompanyRegNumber\"]}}",
"dataPropertyName": "body.hash"
},
"id": "89f8ee81-2679-4bdc-b8c3-8bfca597da5c",
"name": "Crypto",
"type": "n8n-nodes-base.crypto",
"typeVersion": 1,
"position": [
420,
400
]
},
{
"parameters": {
"functionCode": "let final = $node[\"Webhook\"].json[\"body.merchantCompanyLegalName\"];\nfinaltext = final.toLowerCase();\nitems[0].json.text = finaltext;\nconsole.log(finaltext)\nreturn items;"
},
"id": "dd9b897a-cdb4-41ef-9d07-c73093c1757d",
"name": "Function",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
180,
400
]
}
],
"pinData": {
"Webhook": [
{
"json": {
"headers": {
"host": "api.bakkbone.au",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36 X-Middleton/1",
"content-length": "1174",
"accept": "*/*",
"accept-encoding": "deflate, gzip",
"content-type": "application/json",
"x-forwarded-for": "206.189.205.251",
"x-forwarded-host": "api.bakkbone.au",
"x-forwarded-proto": "https",
"x-real-ip": "115.70.107.209"
},
"params": {},
"query": {},
"body": {
"merchantCompanyLegalName": "LANDERS, LINDA MARIE",
"merchantCompanyTradingName": "BAKKBONE Australia",
"merchantCompanyRegNumber": "89407920728",
"merchantIndustry": "Utilities",
"merchantWebsite": "https://www.bakkbone.com.au/",
"merchantCountry": "Australia",
"merchantState": "Western Australia",
"merchantCity": "Canning Vale",
"merchantStreet": "123 Fake St",
"merchantPostcode": "6155",
"merchantTimezone": "Australia/Perth",
"merchantContactName": "Scott Landers",
"merchantContactEmail": "[email protected]",
"merchantContactPhone": "1234567890",
"merchantContactMobile": "1234567890",
"merchantBillingContactName": "Scott Landers",
"merchantBillingContactEmail": "[email protected]",
"ddSettlementAccountName": "BAKKBONE Australia",
"ddSettlementAccountBSB": "123456",
"ddSettlementAccountNumber": "12345678",
"ccSettlementAccountName": "BAKKBONE Australia",
"ccSettlementAccountBSB": "123456",
"ccSettlementAccountNumber": "12345678",
"cardAcceptorName": "BAKKBONE Australia",
"merchantCategoryCode": "4814",
"additionalOptions": "Direct Debit",
"accountOption": "MW All-In-One - No Annual Fee",
}
}
}
],
"Crypto": [
{
"json": {
"headers": {
"host": "api.bakkbone.au",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36 X-Middleton/1",
"content-length": "1174",
"accept": "*/*",
"accept-encoding": "deflate, gzip",
"content-type": "application/json",
"x-forwarded-for": "206.189.205.251",
"x-forwarded-host": "api.bakkbone.au",
"x-forwarded-proto": "https",
"x-real-ip": "115.70.107.209"
},
"params": {},
"query": {},
"body": {
"merchantCompanyLegalName": "LANDERS, LINDA MARIE",
"merchantCompanyTradingName": "BAKKBONE Australia",
"merchantCompanyRegNumber": "89407920728",
"merchantIndustry": "Utilities",
"merchantWebsite": "https://www.bakkbone.com.au/",
"merchantCountry": "Australia",
"merchantState": "Western Australia",
"merchantCity": "Canning Vale",
"merchantStreet": "123 Fake St",
"merchantPostcode": "6155",
"merchantTimezone": "Australia/Perth",
"merchantContactName": "Scott Landers",
"merchantContactEmail": "[email protected]",
"merchantContactPhone": "1234567890",
"merchantContactMobile": "1234567890",
"merchantBillingContactName": "Scott Landers",
"merchantBillingContactEmail": "[email protected]",
"ddSettlementAccountName": "BAKKBONE Australia",
"ddSettlementAccountBSB": "123456",
"ddSettlementAccountNumber": "12345678",
"ccSettlementAccountName": "BAKKBONE Australia",
"ccSettlementAccountBSB": "123456",
"ccSettlementAccountNumber": "12345678",
"cardAcceptorName": "BAKKBONE Australia",
"merchantCategoryCode": "4814",
"additionalOptions": "Direct Debit",
"accountOption": "MW All-In-One - No Annual Fee",
"hash": "1234567890sdfghjkl8uybi"
}
}
}
]
},
"connections": {
"Webhook": {
"main": [
[
{
"node": "Function",
"type": "main",
"index": 0
}
]
]
},
"Crypto": {
"main": [
[
{
"node": "HTTP Request",
"type": "main",
"index": 0
}
]
]
},
"Function": {
"main": [
[
{
"node": "Crypto",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {},
"id": 12,
"meta": {
"instanceId": "8816cbb0556450ed07c38872a7de2f7be3173a6b3a905f8950298674b143dd58"
},
"tags": []
}
I haven’t yet referenced the output of the function because I can’t get it working, but it would be replacing the {{$node[“Webhook”].json[“body.merchantCompanyLegalName”]}} in the crypto node
I’m also not familiar with JS myself so this is all new for me 
