Skip to content

System integration

System integration links applications, data and work steps. Interfaces alone are insufficient: identifiers, field meanings and outcomes need to agree.

APIs & Integration

What is system integration?

System integration connects technical systems so that they can exchange data and carry out agreed tasks together. Besides connectivity, it covers data formats, identifiers, permissions and handling failed operations. An API is a possible component; it does not by itself define which business data is transferred or which steps are triggered. The systems can remain independent.

A fictional metalworking business plans to transfer a customer-accepted quotation Q-104 from its CRM into its ERP as an order for further review. CRM customer identifier C-21 is mapped to ERP customer account D-73. The integration should transfer lines and quantities into an order draft and return its reference. If the customer mapping is unclear, the transfer awaits clarification. In this example, the result is the correct ERP draft linked back to the quotation; successfully transporting a message alone does not establish that state.

Sources

Related terms

Articles on this topic

Insights · APIs & Integration2 minClarify an interface’s job before replacing itAn outdated connection may still carry important workflows. Its replacement needs clarity about effects, exceptions and open operations.Tobias KrügerNov 13, 2026
Insights · APIs & Integration2 minIntegrations need accountable owners after launchAn operating connection needs decisions about changes and incidents. Technical setup alone does not assign that responsibility.Daniel HartmannNov 13, 2026
Insights · APIs & Integration2 minIntegration effort depends on the data path you needTwo tools with APIs can require different preparation. The deciding factors are the required data, operations and permissions.Tobias KrügerNov 13, 2026
Insights · APIs & Integration2 minA shared data model needs agreed meaningThe same field can mean different things in a CRM and an ERP. The teams need to agree its meaning before defining a shared structure.Tobias KrügerNov 13, 2026
Insights · APIs & Integration2 minWebhook integrations need rules for repeat deliveriesControl the business effects of repeated webhooks. A missing acknowledgement must not trigger another order without checking.Tobias KrügerNov 13, 2026
Insights · APIs & Integration3 minUnclear customer mappings need a defined resolution pathResending does not resolve an unclear customer mapping. An integration needs a documented path from clarification to a confirmed target outcome.Tobias KrügerNov 13, 2026
Insights · APIs & Integration2 minTwo-way synchronisation needs explicit write rulesIf CRM and ERP can write, each shared field needs a conflict rule. The last message to arrive is not automatically the latest business decision.Tobias KrügerNov 13, 2026
Insights · APIs & Integration2 minAn accepted request needs a visible outcomeFor background work, the portal must show what was accepted and how it ends. A successful status query can report a failed job.Tobias KrügerNov 13, 2026

APIs & Integration with ASES

ERP, CRM and shop cleanly connected

Request a quoteMore on APIs & Integration