Test migration, checksums and acceptance
Prove that the new X-ERP data world is technically correct with repeatable test runs, checksums, borderline cases and real process paths.
The most convincing migration report is not a green “done”, but a chain of evidence that the department and technology understand together.
The truth is in the mapping
Counts check completeness, sums check magnitudes, referential controls check relationships and end-to-end tests check actual usability. Acceptance only occurs together.
From raw stock to controlled import
- Define expected counts, totals, balances, minimum/maximum values and error rate per object.
- Run a full test run with production volume in an isolated environment.
- Automatically compare source, staging and X-ERP and document deviations.
- Check targeted edge cases as well as random and risk-based samples.
- Let specialist users carry out real processes from searching to subsequent documents.
- After making corrections, repeat the entire run and obtain formal acceptance.
Evidence instead of gut feeling
- All deviations are explained and approved.
- Repetition produces identical results without duplicates.
- Runtime fits in the cutover window.
- Department confirms data and processes.
The typical breaking points
- Only line numbers are compared.
- Bug fixes are not regression tested.
- A partial import is accepted even though end-to-end relationships are missing.
This is what you take with you
The migration is not “probably correct”, but rather comprehensibly proven.
Related topics
- For migration specialists – transfer and optimize data from third-party systems › Cutover, fallback plan and productive start
- For migration specialists – transfer and optimize data from third-party systems › File attachments
Frequently asked questions
**Which checksums make sense?**
Depending on the object, number, net total, tax, open balance, inventory quantity, earliest/latest date, unique keys and foreign key errors.
**How many samples are enough?**
Risk-based: critical, large, old, unusual and random cases - in addition to automatic full controls.