SAP Implementation Assumptions Log
This is a practical guide to building a assumptions log for a sap implementation project — a register of the assumptions the plan depends on, to be validated, adapted to the realities of implementing SAP modules across finance, supply chain and operations.
What a Assumptions Log is
A assumptions log is a register of the assumptions the plan depends on, to be validated. For the full concept and how it works in general, see Project Assumption. On a sap implementation project it plays the same role, tuned to this kind of work.
Why it matters for a SAP Implementation project
SAP Implementation projects live or die on implementing SAP modules across finance, supply chain and operations. A well-built assumptions log gives the team a shared, explicit reference for exactly that — reducing ambiguity, aligning stakeholders, and making problems visible early enough to act. Skipping it, or doing it generically, is how sap implementation projects drift into avoidable delay and cost.
What to include
- Assumption
- Impact if wrong
- Owner
- Validation status
SAP Implementation-specific considerations
Tailor the assumptions log to the risks that most often derail sap implementation projects:
- Scope and customisation creep
- Data migration complexity
- Change management across departments
Example
On a real sap implementation project, the assumptions log would be shaped by implementing SAP modules across finance, supply chain and operations. In particular, it should explicitly account for the project’s biggest risks — scope and customisation creep, data migration complexity, change management across departments — rather than treating them as afterthoughts.