Top 100 Essential Data Quality Checks for Sales and Product Data

Top 100 Data Quality checks for sales and product data.

Consistency Checks

1. Check for null values in critical fields.
2. Check for correct date formats.
3. Ensure price is a positive value.
4. Check for valid product IDs in sales table.
5. Ensure no duplicate sales entries.
6. Check for matching currency codes.
7. Validate product categories exist.
8. Ensure order status values are valid.
9. Check for consistent tax rates.
10. Validate discount values.

Completeness Checks

11. Ensure all products have descriptions.
12. Check all sales records have a product ID.
13. Ensure all orders have customer IDs.
14. Validate that all products have prices.
15. Check for missing sales dates.
16. Ensure all categories have names.
17. Validate all products have a valid category.
18. Check for missing tax rates in sales data.
19. Ensure all sales records have quantities.
20. Check for null values in order status.

Accuracy Checks

21. Validate sales totals calculation.
22. Check for accurate product prices.
23. Ensure customer data accuracy.
24. Validate product stock levels.
25. Check for realistic shipping dates.
26. Ensure product weights are within reasonable range.
27. Validate sales tax calculations.
28. Check for negative quantities in sales.
29. Ensure total order amounts are correct.
30. Validate customer age for restricted products.

Uniqueness Checks

31. Check for unique product IDs.
32. Ensure unique sales order numbers.
33. Validate unique customer emails.
34. Check for unique product SKUs.
35. Ensure unique category names.
36. Check for unique order dates per customer.
37. Validate unique product names.
38. Ensure unique combination of product and category IDs.
39. Check for unique sale IDs.
40. Validate unique inventory entries.

Timeliness Checks

41. Check for recent sales data.
42. Ensure product updates are recent.
43. Validate recent customer activity.
44. Check for timely order processing.
45. Ensure recent stock level updates.
46. Validate recent pricing updates.
47. Check for recent customer feedback.
48. Ensure product availability is current.
49. Validate recent order shipments.
50. Check for timely customer support responses.

Additional Checks

51. Ensure valid phone numbers.
52. Check for valid email addresses.
53. Validate addresses for completeness.
54. Check for valid shipping addresses.
55. Ensure accurate customer names.
56. Validate inventory quantities.
57. Check for valid payment methods.
58. Ensure unique transaction IDs.
59. Validate shipping costs.
60. Check for realistic product dimensions.

Advanced Checks

61. Ensure product images are not missing.
62. Check for valid product URLs.
63. Validate SKU format.
64. Check for realistic delivery dates.
65. Ensure correct application of discounts.
66. Validate correct tax jurisdiction.
67. Check for valid promotional codes.
68. Ensure accurate refund processing.
69. Validate supplier data.
70. Check for correct warehouse assignments.

Continuation

71. Ensure accurate reorder levels.
72. Check for missing payment confirmations.
73. Validate shipping carrier data.
74. Ensure accurate sales commission rates.
75. Check for valid promotion dates.
76. Ensure accurate product ratings.
77. Validate product return reasons.
78. Check for valid coupon codes.
79. Ensure accurate shipping weights.
80. Validate loyalty points.

Specialized Checks

81. Ensure product tags are not empty.
82. Check for valid vendor IDs.
83. Validate sales channel data.
84. Check for accurate shipment tracking numbers.
85. Ensure valid return statuses.
86. Validate correct application of loyalty discounts.
87. Check for valid inventory locations.
88. Ensure correct product hierarchy.
89. Validate subscription billing cycles.
90. Check for valid shipment statuses.

Final Checks

91. Ensure accurate product bundle prices.
92. Check for valid subscription statuses.
93. Validate purchase order statuses.
94. Ensure correct commission calculations.
95. Check for valid supplier payment terms.
96. Validate correct usage of promo codes.
97. Ensure accurate affiliate commissions.
98. Check for correct application of sales tax.
99. Validate customer loyalty tiers.
100. Ensure accurate representation of gift card balances.

These checks help ensure the quality and reliability of sales and product data by covering various aspects such as consistency, completeness, accuracy, uniqueness, and timeliness.

Check out this link for SQL queries to implement these Data Quality Checks:

Top 100 Data Quality Checks | Free