Wait, I re-read your message and think I now understand.  How about this?I'm attaching the blueprint for your reference/inspection.

Hi Lars,I'm trying to follow the actual ask, so apologies if I get something wrong.  I think you have a data store structured like this:Email AddressCategoryIf the Category is a value of xy, then you want to process those values, such as aggregating them together.So you'd want something like this:Sc...

It's pretty straightforward.  You can either use the Delete module or the Custom API module with a method of DELETE and a URL of bill/{id}.  Just make sure the billing record first has no hours associated to it and it's not in "invoiced" status.  So you may need to do some updates to the record PRIO...

Tools to help better manage scenario performance would be useful to know where to focus efforts on optimizing scenario configurations.  For example, given a scenario that calls three services, a heat map showing overall processing time of a given module could indicate that a module or set of modules...

Also, use X as the format specifier: formatDate( {{now}} ; X ) for example.

Divide your time stamp by 1000 first.  You have a millisecond time stamp; Workfront only supports second precision.

formatDate({{timestamp}};X)parseDate({{timestamp}};X)

We use them more often than we use the built-in modules.  They're fairly simple once you learn how to use the API Explorer.  (I still use the older version at https://developer.workfront.com, but I know there's a newer one out there.) Example: 

I've done something similar to this using the following type of technique: I've attached a blueprint that should show you how to do it.  But in short:Init your array using something like add(emptyarray; a; b; c)Create your indices using a Repeater from 0 to length(array)Grab the element at index i u...

A simple JSON.stringify() and JSON.parse() (maybe as a toJson() and fromJson()?) would be incredibly helpful to simplify a bunch of cases.  Love the suggestion.