TECHNICAL GUIDE / Business system development
Planning business systems: from Excel to CRM, inventory & approvals
When to move from Excel, chat groups and legacy systems to custom software
Understand the decision criteria first
Business systems & digital workflows: where to start?
Start with a frequent workflow spanning roles and producing verifiable results. Define who maintains orders, customers and inventory and when data changes, then design screens, permissions, APIs and reports instead of starting with an entire ERP feature list.
| Current situation | Clarify first | Validation focus |
|---|---|---|
| Several people maintain the same orders | Order states, owners & change records | Test cancellations, returns & handovers |
| Inventory quantities often fail to reconcile | Materials, batches, locations & movement documents | Trace a stock change and count discrepancy |
| Approvals and payments rely on manual reminders | Step conditions, tasks, reminders & permissions | Test overdue items, rejections & cross-role visibility |
Common project assessment questions
When is custom development worthwhile?
Consider it when repeated entry, status checks or reconciliation affect delivery and standard tools cannot support critical rules at reasonable cost. For unvalidated businesses, few users or rapidly changing workflows, begin with existing tools and prototypes.
What should the first phase cover?
Choose an input-to-result workflow such as purchase-to-receipt or lead-to-payment, with clear roles, states, data sources and exceptions. Cross-team reports should use shared business objects rather than being built before data definitions are aligned.
How should old spreadsheets and historical data be handled?
Sample duplicates, missing values, definitions and relationships before deciding migration scope. Separate data into migration, read-only archives and deferred cleanup, and reconcile record counts and key totals before and after import.
What evidence validates delivery?
An actionable scope includes workflows, business objects, permission matrices, acceptance scenarios and deferred items. Rehearse normal, exceptional and reversal paths with representative data before launch, tracing results to specific documents.
Scope mistakes to avoid
Combining CRM, ERP, finance and production in the first phase makes models and acceptance boundaries unstable. Validate the key workflow and expand through real use.
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