Sometimes you have to run it once for Fusion to pick up what available options are. Sometimes even that doesn't work, in which case you can create a set multiple variables module, map your csv fields into that, and then pick up the variables with your aggregator.

You have to select which fields to pass thru, did you do that?

As an alternative approach, you could place an array aggregator right after the parse CSV, and group it by whatever key you need to ensure is only processed once.

It's fairly straight forward.1. Create a webhook that triggers on project creation, and filter by convertedOpTaskEntryDate != blank, as well as any other filter you'd like2. Update project name

So to make sure I understand, you're saying when a request is converted into a project, you want the project name to change to something like {Project Reference Number} {Original Project Name}? If so, I've done similar things previously, yes.

Fair enough, I was hoping against hope there would be some other way.

No, the UID and reference number both are inviolate, for all objects. As long as you are working with the same object, both of those values will always be the same.

That's correct. In the API, the field is called "ID".

You have to modify a project with the UID of the project, but you can for sure search for a project with the reference number, just add referenceNumber={your reference number} to your query string, replacing {your reference number} with the target reference number.

I don't believe that you can modify an existing approval process, although I've never tried so I could be wrong. You can for sure use Fusion to build out a new approval process, however, and you could build that out to fit your needs.