Gitlab, Parent-child pipelines

Question

I am trying to create a giblab job, CI, in .yml file.

When I try to add needs in yml as follows, it works but there is no SW found in this Downstream : needs: - trigger-build

When I try to reach my SW, build_Voltlabor_hil_Release, I get an error shows that build_Voltlabor_hil_Release is not found or not exist.

Screenshot for downstream: https://i.stack.imgur.com/IsMaP.png

I need to configure the .yml script to extract the HiL release from child build (trigger-build). This should be in the configuration options.

Relevant documentation is in the link: https://docs.gitlab.com/ee/ci/pipelines/parent_child_pipelines.html

But not enough details provided them.