SAP UAT
SAP can be configured perfectly and still fail the people using it.
We validate SAP ERP deployments against real business processes — the cross-module, cross-system workflows that your SI's test scripts don't cover.
Talk to the founderWhat we validate
End-to-end business processes, not configuration screens.
Procure-to-pay
Purchase requisitions through to vendor payment — three-way match, goods receipt, invoice verification, and payment runs tested with realistic volumes.
Order-to-cash
Sales order through to cash receipt — pricing, availability, delivery, invoicing, and account settlement tested across customer and product scenarios.
Finance & controlling
Cost centre allocations, profit centre reporting, period-end close, and intercompany reconciliation validated with real chart of accounts data.
HR & payroll (S/4, HCM, SuccessFactors)
Organisation structure, master data replication, payroll schema, and time management — tested with representative employee data sets.
Integration landscape
RFC, IDoc, and API integrations between SAP and peripheral systems validated for message integrity, error handling, and sequencing.
SAP Fiori & UI5
Launchpad, tile configuration, role assignment, and custom apps tested across user roles and devices — including edge cases your BASIS team won't catch.
What we find
This is what automated testing misses.
Real scenarios our specialists have caught in SAP UAT engagements.
Three-way match fails silently for goods receipts posted with partial quantities — invoices queued for manual review with no notification
Foreign currency revaluation posts to the wrong GL account for intercompany transactions — discovered during period-end, not UAT
Delivery split logic incorrect for orders with mixed storage locations — some line items shipped, others stuck in backorder with no alert
Replication lag between SuccessFactors and SAP HCM causes payroll to run with yesterday's org structure for terminations processed after 3pm
BW InfoCube delta extracts skip records when source table update timestamps fall in the same second — affects daily sales reconciliation
SAP Fiori launchpad tiles load for Desktop role but are invisible to users assigned via composite role — permission hierarchy gap
From the blog
SAP UAT in depth
SAP UAT Checklist
SAP UAT Testing Checklist: What to Validate Before S/4HANA Go-Live
A practical checklist covering the scenarios that matter most before S/4HANA go-live — procure-to-pay, period-end close, Fiori, and the integration failures automated testing misses.
Read the checklistFinance & Logistics
SAP UAT Before Go-Live: What Finance and Logistics Teams Need to Test
Period-end close simulation, foreign currency revaluation, delivery split logic, three-way match edge cases — the scenarios Finance and Logistics carry into production when UAT cuts corners.
Read the guideSAP Fiori UAT
SAP Fiori UAT Testing: How to Validate Launchpad, Roles, and UI5 Apps Before Go-Live
Tile visibility gaps, composite role permission failures, and custom UI5 app defects that only surface under realistic data — the Fiori UAT scenarios your BASIS team won't catch in configuration testing.
Read the SAP Fiori UAT guideFAQ
Common questions about SAP UAT.
How do you test SAP S/4HANA before go-live?
Testing SAP S/4HANA before go-live requires UAT specialists who understand end-to-end business processes, not just configuration. Bugwolf embeds testers who execute procure-to-pay, order-to-cash, and period-end close scenarios using role-specific personas — finance, procurement, logistics, and HR — under production-like data conditions. We validate cross-module flows, IDoc and RFC integrations, Fiori launchpad access, and the edge cases your system integrator's scripts don't cover.
What should an SAP UAT checklist include?
A thorough SAP UAT checklist should cover: procure-to-pay end-to-end including three-way match, goods receipt, and payment runs; order-to-cash including pricing, delivery split logic, and invoice settlement; finance and controlling including cost centre allocations, profit centre reporting, and intercompany reconciliation; HR and payroll including SuccessFactors replication, payroll schema, and time management; integration landscape including IDoc, RFC, and API flows between SAP and peripheral systems; and SAP Fiori launchpad tile visibility and role assignment across composite and single roles.
Why is UAT critical for SAP ERP implementations?
SAP implementations are high-risk because defects in cross-module workflows — such as three-way match failures or intercompany posting errors — only surface when real users run complete business processes. Automated regression testing and developer-led unit tests validate configuration in isolation but miss the integration failures that cause go-live incidents. Independent UAT with domain-literate testers finds the defects that matter to the business before they reach production.
How is SAP Fiori tested during UAT?
SAP Fiori UAT should test launchpad tile visibility across every user role, including users assigned via composite roles where permission hierarchy gaps commonly hide tiles. Bugwolf tests Fiori apps across Desktop, tablet, and mobile form factors, validates custom UI5 applications under realistic data volumes, and checks that role-based access restrictions behave correctly end-to-end — not just in the role maintenance transaction.
What SAP data migration testing should happen before go-live?
Data migration UAT should validate that migrated records behave correctly in end-to-end business processes — not just that they loaded without errors. Bugwolf tests migrated vendor and customer master data through full procure-to-pay and order-to-cash cycles, validates open item carry-forward in finance, checks that ABAP migration programs handle edge cases such as special characters and partial records, and confirms that cutover data is consistent across integrated systems including SuccessFactors and BW.
Also in our platform specialisms
SAP go-live on the schedule?
Talk to Ash before you flip the switch. 13 years of enterprise UAT — and zero failed go-lives on our watch.
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