Look at the handoff.
A business can have excellent tools and still struggle with daily execution. The inbox knows about a request, the spreadsheet holds a status and the accounting system holds an invoice. People become the connection, copying information and checking whether someone else has done the next step. The opportunity is to make that handoff explicit.
Map one complete journey.
Choose a journey such as inquiry to booking or approved quote to invoice. Write down the trigger, required information, systems involved, decision points and completion condition. Include the unusual cases: incomplete requests, duplicates, rejected approvals and a service that is temporarily unavailable.
Preserve the source of truth.
Connecting systems does not require putting every record in one database. Decide which system owns a customer record, a financial entry or an approved document. Use references and controlled updates to keep those responsibilities clear. A shared view should make ownership easier to understand, not create another competing record.
Make recovery part of the workflow.
A connection will occasionally fail. A useful design explains what is retried, how duplicates are prevented and who sees an unresolved exception. People should be able to understand what happened without reverse-engineering logs. The ability to recover a workflow is part of its business value.
Choose the smallest valuable connection.
Start where a repeated handoff creates measurable effort or lost opportunity. Connect that journey, observe it and refine the operating rules. This produces a practical foundation for the next improvement while avoiding a large migration before the value is understood.
Choose one workflow. Establish the baseline. Define the boundaries. Build on a result you can understand.