For most HRIS leads and program sponsors, SAP SuccessFactors data migration starts with a spreadsheet.

And every failed SuccessFactors migration starts the same way: someone fills out the spreadsheet, thinking that’s the job.

But weeks later, the load fails. SIT is delayed. Payroll testing stalls. And suddenly, that supposedly simple spreadsheet becomes the symbol of a much larger issue, one that was never really about the spreadsheet at all.

This is the story of how SuccessFactors projects get blindsided by data. And why it keeps happening.

SAP provides load templates for every SuccessFactors object. That’s not the problem.

The problem is that these templates look deceptively straightforward, and that gives internal teams and sponsors a false sense of confidence.

What’s not visible in the spreadsheet:

• Dependencies across configuration, job data, and pay structures
• Fields governed by SuccessFactors-specific logic and validation rules
• Transformation challenges from legacy, unstructured data
• A need for formal ownership, version control, and mock-load rehearsal
• Org structure design often evolves during the project, introducing new hierarchies, roles, or cost centre models that legacy data simply wasn’t built to support

What starts as a “fill in the blanks” task quickly becomes a source of risk the project was never resourced to manage.

Coriza is often called into projects where mock loads have already failed, or SIT has slipped due to reconciliation issues. The patterns are clear:

• Teams assume the templates are the process
• No one owns key decisions about mapping or validation
• Mock loads are treated as technical checks, not structured rehearsals

In one case, the data team believed they were ready, until pay groups failed validation and test teams had to manually backfill records just to keep moving. In another, business units interpreted mapping requirements differently, resulting in inconsistent files that couldn’t be reconciled.

By the time the problem shows up, the fix is never just technical. It’s structural.

What they won’t do, unless explicitly contracted, is:

• Profile your legacy data for risk and gaps
• Design transformation logic across inconsistent business rules
• Define the validation process or sign-off governance
• Assign data ownership or build a reconciliation framework
• Sequence mock loads against program gates like UAT or PPR1

More importantly, they can’t and won’t own the data outcome. That responsibility always sits with the business. While partners may provide technical support and tooling, they typically won’t have time to sit with each business unit, interpret data definitions, or guide internal decision-making. Their role is to load what you give them, not to validate whether it’s correct, complete, or aligned to business rules.

That work? It falls to you. And most internal teams aren’t set up for it.

A spreadsheet is an artefact. A migration strategy is what makes it usable.
Without a documented process, tooling, sequencing, ownership, and validation, templates just capture errors in a more organised format.

Your implementation partner will configure the system and provide load templates.

What looks like a spreadsheet task is actually a full-scale delivery stream. It requires:

• Resourcing: SMEs with time to engage and authority to decide
• Sequencing: Activities aligned to configuration and testing milestones
• Governance: Named owners, validators, and decision checkpoints
• Tooling: Trackers, DOMDs, validation scripts, and audit controls

Without this structure, projects fall behind quietly, then all at once.

At Coriza, we specialise in data migration for SAP environments, including SuccessFactors.

Our framework supports clients across all stages, from readiness planning to full-cycle migration and reconciliation. We don’t just fill out templates, we help you build the governance, tooling, and structure that protects your go-live.

Whether you need targeted support for mock loads or an end-to-end migration partner, we bring the experience and frameworks that reduce rework, delays, and downstream risk.

Coriza’s new eBook, Why Data Migration is the Silent Risk in SAP SuccessFactors Projects, dives deep into:

• Why so many projects fail at the first mock load
• The governance and tooling most programs overlook
• How to build a load-ready data stream without overloading your SMEs
• What “clean data” really means in SuccessFactors
• The playbook our clients use to avoid rework, delays, and payroll failures

Download the full eBook
👉Here

• Read our blog post Your Best Practice Guide to SAP SuccessFactors Data Migration
• Review related services and case studies SAP SuccessFactors Data Migration Services
• Try our Data Readiness Self-Assessment – tailored insights, instant report
• Book a Strategy Alignment Review – Check your data strategy before you start!
• Check out our Cloud ERP Solutions for Mid-Market Businesses