Overall depends on the following (for me); Will I also be maintaining this solution? If not, are the people that will maintain the solution also comfortable with Custom API calls? Can we achieve what we're doing with the native modules? Is it an unsupported action?Are we creating/updating many recor...

It depends overall what you're doing ie are you connecting Acquia/Widen to Workfront? What are you planning to do in the integration and which direction(s) will information travel? Is there something you already use to find assets as a user that is unique and could translate easily?   A 5 digit numb...

The Create CSV module is also an aggregator; use Create CSV Advanced and you can determine the structure which will include the columns you already have, and the additional columns that you want to add (assuming you've a way of tying a given row's data to the additional columns of data that you're a...

Since you're in Fusion - there's also a miscellaneous action you can use against Tasks to move them to another Project: does the same job but is a little more user friendly 

Yep should do; did you get the results you were expecting running it?

A 422 is typically sent back when  There are no custom forms on the record you are updating (in this case you will get a message like category cannot be null) The field is a dropdown/radio/list and the value you are sending does not exist (in this case you will get a message like Invalid Parameter: ...

The case and pattern needs to match like for like so the switch is looking specifically for 'Email - Pillar' in the patterns. The Input that the switch is assessing is the variable, not the cases.   Each case is 'If Pattern=Input; Output'. The switch is seeing the word 'true' or 'false' in your exam...