Answer
Yes, provided it is defined for each relevant data field and each case which system leads. The ERP can, for example, be responsible for customer master data, items, prices and accounting documents, while the business application maps an approval or clarification process. The business application then displays the ERP data it needs and writes back only agreed results.
“No duplicate data” does not necessarily mean that a copy never exists technically. Controlled replicas may be needed for speed, search or offline work. What matters is that it remains clear which source is authoritative, how changes are synchronised and what happens in the event of conflicts. Without this definition, an integration merely creates two contradictory truths. schukai therefore plans the business data flow first and only then the API endpoints or import formats.
As of 3 September 2026
Further reading
Related topic: Business applications and web software