Excel VLOOKUP Data Matching formula

I have a customer database spread across several sheets and I need a clean, reliable way to pull the right customer information into one master sheet. The core of the task is to build and test VLOOKUP formulas that match records quickly and accurately so I can stop hunting for data manually.

You will receive:
• Multiple worksheets containing customer names, IDs, and contact details.
• A template master sheet where the consolidated data should appear.

What I expect from you:
• Insert and configure VLOOKUP (or a more efficient lookup function if you prefer) to pull the correct customer details every time.
• Flag any mismatches or missing references so I can resolve data gaps.
• Leave clear, in-cell notes or a brief how-to tab so I understand how the formulas work for future updates.

If you see opportunities to improve performance—such as switching to INDEX-MATCH, adding helper columns, or setting the groundwork for a future pivot-table summary—feel free to suggest them. Accuracy and a tidy, easy-to-follow workbook are the success criteria.