[Inquiry] Limitation on Referencing Rollup/Relation Columns in Zoom Table Formulas

API Endpoint(s) and/or Zoom API Event(s) Zoom Tables (Data Structure & Logic) Note: This inquiry is related to the fundamental data logic of Zoom Tables, which affects our planned automation workflow via API.

Description Hello, I am currently building an internal “Leave Management System” using Zoom Tables. I have encountered a blocker regarding the dependency logic between columns.

My Goal: To calculate “Remaining Leave Days” automatically using a Formula.

  • Logic: Total Leave Days (Number) - Used Leave Days (Rollup)

Current Setup:

  1. Table A (Employees): Contains Total Leave Days (Number).

  2. Table B (Requests): Contains individual leave requests.

  3. Relation: Table A and B are linked.

  4. Rollup: Used Leave Days in Table A aggregates the sum of days from Table B.

The Issue: When I try to configure the Formula column in Table A, I cannot select or reference the Rollup column (Used Leave Days). It seems that referencing dynamic values (Rollup/Relation) inside a Formula is currently restricted.

Questions:

  1. Is this restriction an intended architectural decision to prevent performance bottlenecks (e.g., cascade updates) or circular dependencies?

  2. Is there a roadmap to support referencing Rollup/Relation data in Formulas in the future? (This is a critical feature for our automation).

Error: #REF! RollUp column cannot be referenced. Please review and correct the formula.

How To Reproduce Steps to reproduce the behavior:

  1. Create two tables (Table A, Table B) in Zoom Tables.

  2. Create a Relation column linking them.

  3. Create a Rollup column in Table A that sums up values from Table B.

  4. Create a Formula column in Table A.

  5. Attempt to write a formula that references the Rollup column created in Step 3.

    • Result: The Rollup column is not selectable/visible in the property list.

Hi @irlink_hong
Thanks for reaching out to us
Are you talking about Tables in Zoom Docs?
If so, please head to the Zoom Community and post your questions there

This forum is specifically for Developer issues

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