Using Period-over-Period Analysis in conversational Agents

Looker Q&A Looker Studio
1

Hi everyone,
I’ve been using looker for a while and i’m starting to get into conversational agents.
We have implemented in most of our models the Period-over-Period Method ( The Ultimate Guide to Period-over-Period Analysis in Looker | by Cyril Marques | ${around_the_block} )
When trying to use it with the conversational agents, we get this error:
{
"data": {
"timestamp": "2025-11-11T15:47:08.001422Z",
"systemMessage": {
"error": {
"text": "QUERY_VALIDATION: The following fields are invalid or do not exist in the selected datasource: pop_method.current_date_range, pop_method.compare_to. Please check the schema and correct the field names."
},
"kind": "error"
}
}
}
Is it because conversational agents don’t recognize fields that are not either dimensions or measures? These fields are created as filters

Thanks in advance for your time