Create a Dynamic Column in a Table Visual

Anonymous 

No, this is not possible in Power BI table visuals.

Power BI visuals are read-only. Users cannot directly edit values per row in a table and have measures recalculate in real time.

Why this doesn’t work in Power BI:

1. Table visuals do not support per-row user input.

2. Slicers apply the same value to all rows in the current filter context.

3. Measures recalculate only from model data or slicer/filter context, not manual edits.

4. Power BI has no concept of “write-back” or editable cells.

What is possible (workarounds):

Option 1: Disconnected parameter table (limited)

• You can let users select a value via slicer or parameter

• But it applies globally or by filter, not per row

Option 2: “What-if” parameters per scenario

• Create multiple scenario columns (Scenario A, B, C)

• User switches scenarios, not individual rows

Option 3: Use Power Apps (best workaround)

• Embed a Power Apps visual

• Allow users to edit Proposed Days to Pay per vendor

• Write values back to a data source (SharePoint, Dataverse, SQL)

• Refresh or DirectQuery updates PNL measure

You can start from here 

1. https://www.youtube.com/playlist?list=PLTyFh-qDKAiFUEgsXoQ9E-LJu4lcS0iMI 

2. https://learn.microsoft.com/en-us/training/paths/power-apps-online-workshop/