If you are still building project dashboards in Excel with INDEX MATCH and VBA macros, you are spending time on plumbing that should be invisible. The user who posted this question, someone clearly capable and thoughtful, has already hit the real wall: Excel can retrieve data elegantly, but writing it back, especially across dates and future entries, requires a level of scripting that most project managers never signed up for. That is not a personal failing. It is a tool limitation.
The core problem here is not the macro syntax. It is that the spreadsheet was never designed to be a living database with write-back logic. The user wants a button that overwrites notes for a given project and date, and also wants to allow new notes for future dates. In Excel, that means writing VBA to find the correct row, check for existing data, handle blank cells, and probably add a new row if the date does not exist yet. It is doable. It is also fragile. One misplaced cell reference, one user who sorts the data differently, and the whole thing breaks. The user is asking for a feature that spreadsheets treat as an afterthought: bidirectional data flow with user-friendly controls.
This is where the conversation should shift. Instead of debugging a macro, consider what the dashboard is actually asking for. A project dashboard that lets you select a name and a date, view notes, and then edit or add notes is a simple relational application. It has a primary key (project name plus date), a display layer, and an update form. Excel forces you to simulate all of that with formulas and code. An AI-native spreadsheet tool handles it natively, you define the logic, and the interface adapts. The user should not have to write a single line of VBA to update a note. They should type, click, and move on.
The practical takeaway is straightforward. If you are building this dashboard for a one-off report, the macro might get you through the week. But if this is a tool your team will rely on, invest in a solution that treats data as data, not as cells with fragile references. The question is not how to write the macro. The question is whether you should have to.