Ryigit

Series 5 - The Tax Architecture Decision That Defines Your S/4HANA's True Value

Business EN ↓ 4 episodes

S/4HANA processes at speeds ECC never reached. That is exactly the problem — if your tax architecture was not designed for real-time, the speed amplifies every failure. Decouple or Fail examines the single most consequential technical decision in any S/4HANA programme: whether to embed tax logic in the ERP core or separate it into a dedicated compliance layer. Hosted by Rıdvan Yiğit | Founder & CEO, RTC Suitertcsuite.com · ridvan.yigit@rtcsuite.com · linkedin.com/in/yigitridvan

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Ryigit

Episodes

Series 5 - The Deep Dive: Why S/4HANA Migrations Fail Without Modern Tax Architecture: The Complete Technical Deep Dive From Blueprint to Internet of Agents 08.04.2026 22:12

Most S/4HANA migrations that succeed technically still fail architecturally — specifically in the dimension of tax and compliance. The failure is not visible at go-live. It accumulates over the years that follow: in upgrade cycles that are hostage to compliance testing, in regulatory mandates that require SAP projects rather than platform configurations, in the impossibility of building the group-...

Series 5 - The Debate: Native vs. Decoupled Tax in S/4HANA: The Definitive Technical and Strategic Debate for SAP Architects and Tax Leaders 08.04.2026 22:09

The debate between native SAP tax functionality and decoupled external compliance architecture is the most consequential technical argument in S/4HANA programme design. It is also the one that receives the least rigorous treatment — typically resolved by default in favour of the native model because it is the path of least resistance in blueprint, not because it is the right answer. This episode g...

Series 5 - The Critique: Why S/4HANA's Speed Is Shattering Tax Compliance — and Why the Architecture You Migrated Is the Cause 08.04.2026 16:39

S/4HANA processes transactions at speeds that SAP ECC never approached. This is presented, consistently and correctly, as one of its primary advantages. It is also the reason why migrating a legacy tax architecture into S/4HANA is not a neutral act. It is an amplification. Every structural compliance failure that was manageable in ECC — because batch processing created a buffer between transaction...

Series 5 - The Brief : Decouple Tax From Your S/4HANA Core — Before the Blueprint Closes and the Decision Is Made for You 08.04.2026 1:52

There is a decision being made in every S/4HANA programme right now. It is rarely on the agenda as a formal decision item. It does not have a named owner. And it is one of the most consequential architectural choices the organisation will make in the next decade. The decision is where tax logic lives. Does compliance logic sit inside the SAP core — embedded in tax codes, Z-programs, country-specif...