Hi Jaycee, thanks for the info! What I’m really trying to do is access a ‘Property’ which is a “fieldType”: “select”, to populate a listbox from an outside system. The property is defined as a ‘Deal Property’, and I can see it via the API, I just can’t find a ‘recordId’ to update it.
When I query it, "https://api.hubapi.com/crm/v3/properties/deal/my_property_name"
I get back the property object, but it doesn’t have a ‘recordId’ to update it via. Which makes me think I’m going about this all wrong…???
BTW Here is the object returned from the query, if it sheds more light on things. This is the list I want to update programmatically via the API 
{
"updatedAt": "2024-10-31T18:11:58.521Z",
"createdAt": "2024-10-29T23:43:29.774Z",
"name": "d_tools_project",
"label": "D-Tools Project",
"type": "enumeration",
"fieldType": "select",
"description": "Bill R. is working on this.",
"groupName": "dealinformation",
"options": [
{
"label": "This is where the thing will go",
"value": "This is where the thing will go",
"description": "",
"displayOrder": 0,
"hidden": false
},
{
"label": "Label 2",
"value": "Label 2",
"description": "",
"displayOrder": 1,
"hidden": false
}
],
"createdUserId": "10857906",
"updatedUserId": "70179506",
"displayOrder": -1,
"calculated": false,
"externalOptions": false,
"archived": false,
"hasUniqueValue": false,
"hidden": false,
"modificationMetadata": {
"archivable": true,
"readOnlyDefinition": false,
"readOnlyValue": false
},
"formField": true,
"dataSensitivity": "non_sensitive"
}