I need to copy artifacts from one multibranch pipeline project to another.

Both are in a folder.

Source: <CUSTOMER>/<customer>-build/trunk

Target: <CUSTOMER>/<customer>-batchtest/trunk

<CUSTOMER>/<customer>-onlinetest/trunk

What syntax do I need to allow the <customer>-batchtest and <customer>-online jobs to copy from their respective branches from the <customer>-build job?

I tried to add

copyArtifactPermission('<CUSTOMER>/<customer>-onlinetest/*,<CUSTOMER>/<customer>-batchtest/*');

But I still get the message:

ERROR: Unable to find project for artifact copy: <CUSTOMER>/<customer>-build/trunk
This may be due to incorrect project name or permission settings; see help for project name in job configuration.

Please expand the example in the documentation to include a job in a subfolder and multibranch pipeline jobs.