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In this part you add four fields that nobody types: UTM Campaign, Tagged URL, Short URL, and QR Code. Each one builds its value from fields you already have. For Acme’s Black Friday row, UTM Campaign becomes awareness-us-ca-2026_11_15-black_friday_2026, and Tagged URL becomes https://shop.acme.example/deals?utm_medium=email&utm_source=newsletter&utm_campaign=awareness-us-ca-2026_11_15-black_friday_2026. It takes four steps, all on the governance model’s Fields page. You need the eight fields from Part 5: The UTM cascade.

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How it works

A computed field has no input cell on the form. Terminus Hub works out its value from other fields on the same row. It recomputes the value as the user types, which gives them a live preview, and again when the submission is saved. When the submission is approved, the value is stored on the record like any other value. Computed fields are always required, and submitters cannot edit them. The one exception in this part is the Short URL slug, which someone can change before approval. A computed field can use another computed field as an input. That is how the four fields chain together: You never set an order of evaluation. Terminus Hub fills in each computed field as soon as its inputs are ready, and it rejects a setup in which a field depends on itself. You do create the fields in chain order, because each step picks the field you made in the step before. For Acme’s Black Friday row, the chain produces:
The Short URL is illustrative. Your account has its own shortener domain, and each record gets its own slug. Each type has its own reference page: Concatenation, Tagged URL, Short URL, and QR Code. The computed types this tutorial skips (Auto Number, Random, Constant, and Terminus ID) are in the other computed fields recipe, and Auto-fill has its own reference page.

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Steps

1

Create UTM Campaign (Concatenation)

With the Marketing governance model open, click Fields in the sidebar. Click Create new and pick Concatenation. A Concatenation field joins other fields’ values with a separator.Set Name to UTM Campaign.Under Field parts, click Add field, then pick Goal in the new Select field… box. Do the same for Country, Region, Launch Date, and Campaign Name, in that order. The parts appear in the output in the order you add them.Set Separator to -. Leave Remove extra separators off. Click Save to draft. UTM Campaign appears in the field list. Click it to reopen it. On a wide screen, the Preview card beside the settings shows UTM Campaign with a placeholder such as {Goal}-{Country}-... for each input that has no value yet. Click Fields to go back.Every part of this campaign name is a required field, so no part is ever empty, and the five parts always sit in the same positions. Remove extra separators and Empty field replacement matter only for parts that can be blank; see the Concatenation reference.
Settle the part order before anyone creates records. Reordering the parts later changes only new records. If you swap Country and Region after records are approved, those records keep awareness-us-ca-2026_11_15-black_friday_2026. Nothing recomputes them.
2

Create Tagged URL (Tagged URL)

Click Create new and pick Tagged URL. A Tagged URL field takes a base URL and appends query parameters whose values come from other fields.Set Name to Tagged URL. Set Base URL field to Destination URL.Under URL parameters, add three parameters. For each one, click Add parameter, type the Key, and pick the Value field:The key is what appears in the query string, and the value field supplies its value. Values are percent-encoded by default (the Encode checkbox). Click Save to draft.
A new parameter’s Value field starts as Set per taxonomy. Pick the field on every row. A parameter left on Set per taxonomy must be given a source in each taxonomy that uses Tagged URL. Until it is, publishing fails with a message like “utm_source has no source in Email Campaigns. Bind a field or mark it not used.”
Tagged URL needs its base. On a row where Destination URL is blank, Tagged URL has nothing to attach the parameters to, and its preview stays empty until someone enters a URL.
3

Create Short URL (Short URL)

Click Create new and pick Short URL. A Short URL field creates a short link that redirects to a destination URL.Set Name to Short URL. Set Destination URL field to Tagged URL, the field you made in the last step. Leave Shortener domain on the default Terminus Hub shortener domain. Set Slug mode to Auto-generated, editable and Slug size to 8. Click Save to draft.With Auto-generated, editable, Terminus Hub picks a random slug for every new record. Someone editing the submission can replace it with a memorable one before approval. Slug size defaults to 10; the tutorial uses 8 to match the example output. The short URL slug modes recipe covers the other two modes, Auto-generated, read-only and Entered manually.The short link goes live at approval. Until then, the slug is reserved on the row and shows in the preview, but the redirect does not work yet, and neither does a QR code taken from an unapproved submission. See the submission pipeline for how a draft becomes a record.
4

Create QR Code (QR Code)

Click Create new one last time and pick QR Code. Set Name to QR Code. Set Source field to Short URL. Click Save to draft. The field list now shows all four fields from this part.Because the source is a Short URL, the QR code encodes the short link’s redirect address, with a qr marker added so scans can be told apart from clicks. If the short link’s destination ever changes, every QR code already printed still works.Source field accepts most field types, including URL and Tagged URL fields, so check that it says Short URL. A QR code made from Tagged URL would bake the whole query string into the image and would not follow the short link when its destination changes.

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Check your work

  • The Marketing governance model has four new computed fields: UTM Campaign, Tagged URL, Short URL, and QR Code. It now has twelve fields in all: the eight user-input fields from Parts 2 to 5, plus these four.
  • Reopen UTM Campaign from the field list. On a wide screen, a Preview card beside the settings shows the field under its input fields. At first each input with no value appears as a placeholder, such as {Goal}. Pick or type sample values, and UTM Campaign updates. The preview covers one step of the chain. When an input is itself computed (as Tagged URL is for Short URL), the preview shows a stand-in value for it. You see the whole chain resolve in Part 8.
  • None of the fields is on a taxonomy yet. That happens in Part 7.

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Next up

The Marketing governance model now holds the full computed chain. In Part 7: Build the taxonomies and publish, you create the three taxonomies, publish the model, and assign them to a workspace. For tagged URLs on their own, see the tagged URL recipe.