Retail API: Field "userEvent.visitorId" is a required field, but no value is found.

[world_of_data]

Hi everyone.

I am using frequently bought together model. But i am getting this error:

Field "userEvent.visitorId" is a required field, but no value is found.

Here is the error graph:

 

I am using google analytics 4 visitor id (from cookies) for prediction. What could cause the problem?

[nceniza]

It looks like the visitorId is a required parameter for requesting of this API, Are you able to fill the parameter for this field? 

Reference: https://cloud.google.com/retail/docs/reference/rest/v2/projects.locations.catalogs.userEvents#UserEv...

I would suggest to contact google support to investigate your project and in case of more underlying error that causes the error mentioned: https://cloud.google.com/contact