Hi @anantkharat ,

Can you please try something like 
pipelines.update(pipeline_id, configuration=configuration, catalog='doha')

From the error message it says catalog was empty.

Check this section https://docs.databricks.com/api/workspace/pipelines/update#catalog

A catalog in Unity Catalog to publish data from this pipeline to. If target is specified, tables in this pipeline are published to a target schema inside catalog (for example, catalog.target.table). If target is not specified, no data is published to Unity Catalog.

Thanks!