Creating user lookups in API


I am using version 2.9 and I am trying to create user lookup via API and found this article in user docs:

Based on that I should be able to do it via command like this:

PUT /api/v2/system/user/100?related=user_lookup_by_user_id

with body:

{"user_lookup_by_user_id": [{
	"name": "favorite_food",
	"value": "pizza",
	"private": false,
	"description": null}

I am getting following error:
“code”: 400,
“context”: null,
“message”: “Unknown relationship: user_lookup_by_user_id”,

Am I doing something wrong or is this a bug?
Many thanks


I have found also this post in forum:

I have tried following request in APIdocs:

I used PATCH /system/user/{id} endpoint with following parameters:

id: 2 …user_id I want to update

RelatedLookupResponse {
“name”: “test”,
“value”: “test”,
“created_date”: “2017-10-03”,
“last_modified_date”: “2017-10-03”,

I get a response code 200 with following information:

“id”: 2

When I look at admin user interface, the lookup key does not show up. What am I doing wrong?

Thanks for your great product.