Fix: “Formulas aren’t valid as part of table headers”

Problem

When using ={'Wholesale Customers Data - Daily Updates RAW'!A:AP} in cell A1, Google Sheets table feature doesn’t allow formulas in headers.

Solution: Separate Headers from Data

  1. Copy headers from RAW sheet:

    • Go to Wholesale Customers Data - Daily Updates RAW sheet
    • Select row 1 (all headers)
    • Copy (Ctrl+C / Cmd+C)
  2. Paste headers in formatted sheet:

    • Go to Wholesale Customers Data - Formatted sheet
    • Click cell A1
    • Paste (Ctrl+V / Cmd+V)
    • Headers are now static text (not formulas)
  3. Add data formula starting in row 2:

    • Click cell A2
    • Paste this formula:
    ={'Wholesale Customers Data - Daily Updates RAW'!A2:AP}
    • This pulls all data starting from row 2 (excluding headers)
  4. Now you can convert to table:

    • Select the entire range (including headers in row 1)
    • Format → Convert to table (if available)
    • Or just use: Data → Create a filter (works the same)

Method 2: Use QUERY Function (Alternative)

If you want everything in one formula but still have filterable headers:

In cell A1:

=QUERY('Wholesale Customers Data - Daily Updates RAW'!A:AP, "SELECT * WHERE A IS NOT NULL", 1)

This:

  • Includes headers (the 1 at the end means “include headers”)
  • Filters out empty rows
  • Creates a table-like structure that’s filterable

Then add filters:

  • Select row 1
  • Data → Create a filter

Method 3: Just Use Filters (Simplest)

You don’t actually need to “convert to table” - filters work the same:

  1. Use the original formula in A1:

    ={'Wholesale Customers Data - Daily Updates RAW'!A:AP}
  2. Add filters:

    • Select row 1
    • Data → Create a filter
    • This gives you all the table functionality (filtering, sorting) without needing the table feature

Use Method 1 (separate headers) because:

  • ✅ Headers are static (can be customized/formatted independently)
  • ✅ Data updates automatically
  • ✅ Works with all Google Sheets features
  • ✅ Can convert to table if needed
  • ✅ More flexible for formatting headers differently

Quick Steps Summary

  1. Copy row 1 from RAW sheet → Paste in row 1 of formatted sheet
  2. In A2 of formatted sheet: ={'Wholesale Customers Data - Daily Updates RAW'!A2:AP}
  3. Select row 1 → Data → Create a filter
  4. Done! ✅