Level 3 test plans spend much of their time on what happens when things go wrong. The rules below are common principles. ⚠ The exact requirements are set by each brand, region and acquirer and change over time.
Exceptions the brands test
Needs: Supporter
Fallback, service codes, reversals, advices, partial approval, referrals and timeouts.
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The opening of the article
In the full article
- Fallback to magnetic stripe
- Reversals
- Response codes that are not simple yes / no
- Offline approvals and advices
- Refunds, voids and other transaction types
- What the tests look for
The rest of the article opens with a supporter pass, which you can try free for 7 days.