How to update label_ids in Pipedrive via Make's “Update an Organization Field Value” module when Map is enabled

What we want to achieve:
We want to dynamically update the label_ids field by adding one or more label IDs to the existing array, without having to manually rewrite or hardcode the full list every time.

:puzzle_piece: Problem Description:
We’re using the official Update an Organization Field Value module for Pipedrive in Make.
Our goal is to update the system field label_ids on an organization by adding one or more new label IDs, without manually overwriting the existing ones.

:wrench: What works:
When Map is disabled, see screenshots.


:cross_mark: What doesn’t work:
When Map is enabled, and we pass the following JSON into the fields input:

[
{
“field_key”: “label_ids”,
“field_value”: [10]
}
]
— we get the error:
“Array of objects expected in parameter ‘fields’”
or, sometimes, the module simply runs without applying any changes.