Blocking until finish Icon Blocking until transforms finish


This transform simply waits until all the transform copies that are specified in the dialog have finished.

You can use it to avoid the natural concurrency (parallelism) that exists between pipeline transform copies.

Supported Engines

Hop Engine



Maybe Supported


Maybe Supported


Maybe Supported


Option Description

Transform name

Name of the transform.

Watch the following transforms

Use this grid to specify the transforms to wait for.

Get transforms

Push this button to auto-fill the "Watch the following transforms" grid with all transforms available in the pipeline.

Option Description

Transform name

The name of the transform to wait for.


The (0-based) copy number of the transform. If the named transform has an explicit setting for "Change number of copies to start", and you want to wait for all copies to finish, you’ll need to enter one row in the grid for each copy, and use this column to specify which copy of the transform to wait for. For the default number of copies (1), the CopyNr is always 0.