# Dev Log: Remove Fees Column from Sales & Profit Tab

**Date:** 2026-05-23
**Author:** Jules (AI Agent)
**Status:** Success

## Overview
The goal of this task was to cleanly remove the "Fees (Est)" column from the "Sales & Profit" tab on the frontend and the corresponding API response, without altering the underlying database schema or the Amazon SP-API data ingestion logic. A subsequent request involved updating the descriptive text at the top of the "Sales & Profit" tab from "Realized profit from sold items (FIFO matching)." to "Sold items history".

## Challenges
1.  **Selective Deletion:** The primary challenge was to ensure that the removal of the `amazon_fees` column was surgical—affecting only the frontend display (`tracking.html`) and the `/api/tracking/sales` endpoint (`wsgi_handler.py`)—while strictly leaving the `sales_ledger` database schema and the data ingestion logic (`keepa_deals/sp_api_tasks.py`) untouched. This was critical because the current zero-value ingestion is intentional until a Finances API integration is built.
2.  **UI Integrity:** Removing a column from an HTML table requires updating not only the `<th>` and `<td>` elements but also ensuring that any structural elements, such as `colspan` attributes on spacer rows, are adjusted accordingly so the table layout does not break.

## Solutions Implemented
1.  **Frontend Cleanup (`templates/tracking.html`):**
    *   Removed the `<th>` header containing "Fees (Est) ℹ️".
    *   Removed the `<td style="color: #888;">$0.00</td>` data cell from the JavaScript template literal that renders the rows.
    *   Updated the `<td colspan="6">` on the spacer row to `<td colspan="5">` to reflect the new column count.
    *   Updated the descriptive text at the top of the tab from "Realized profit from sold items (FIFO matching)." to "Sold items history".
2.  **Backend Cleanup (`wsgi_handler.py`):**
    *   Modified the SQL `SELECT` query in the `get_sales_history()` function (which powers the `/api/tracking/sales` endpoint) to omit the `amazon_fees` field, preventing unnecessary data from being sent to the client.
3.  **Preservation of Existing Architecture:**
    *   Confirmed via codebase search that the database schema (`keepa_deals/db_utils.py`) and ingestion logic (`keepa_deals/sp_api_tasks.py`) remained completely unaltered.

## Results
The task was completely successful. The "Fees (Est)" column is no longer visible on the frontend, the API response is leaner, the descriptive text was correctly updated, and the backend data ingestion architecture remains intact for future enhancements. All core tests passed.