Custom Items

Retrieve, create, delete, link/unlink, and CSV-import custom object items. Note: the standard update endpoints (PUT/PATCH /custom/items/{id}/edit) are not functional — create items via POST /custom/item/new/{customObjectId} and delete/recreate to change them.

📄️ List custom items

Lists custom items with their field values (`fieldValues`).

📄️ Get custom item

Retrieve a single custom item by ID.

📄️ Create custom item

Creates a custom item for the specified custom object, or **updates an existing one** (upsert).

📄️ Batch create custom items

Creates or updates several custom items in one request, with the same upsert rule as

📄️ Delete custom item

Note - this uses GET method (non-standard).

📄️ Delete custom item (REST)

Delete a custom item using the standard REST `DELETE` verb. Returns the deleted item.

📄️ Link custom item to entity

Link a custom item to a contact or company.

📄️ Unlink custom item from entity

Remove the link between a custom item and a contact or company.

📄️ Link custom item to entity by field value

Resolve a custom item by matching a field value, then link it to a contact, company, or

📄️ Unlink custom item from entity by field value

Resolve a custom item by matching a field value (see 'Link custom item to entity by field

📄️ Import custom items from CSV

Queue a CSV import of custom items for a custom object. The import runs asynchronously in