Make the tools work through one application.

An internal application often depends on a tool that already holds the relevant customer, project or service information. We develop the connection needed for the agreed workflow using the interfaces and access available from that system. We start by identifying the records the application must read and the actions it needs to perform.

For a hypothetical project-intake tool, the application might read a project reference from a business system and create a task in a work-management tool after assignment is approved.

Reading the reference and creating the task are separate capabilities. They can have different credentials, permissions and failure behavior.

The application needs to know which system holds the authoritative version of each detail. A copied name can help someone recognize a record, while the receiving system’s identifier determines which record is actually updated. We keep those responsibilities explicit in the integration design.

Before sending an update, the application may need to check that the target still exists or that its version has not changed. Some services support conditional updates; others offer more limited checks. We use the mechanisms the service actually provides and show conflicts in a way the operator can resolve.

A webhook can tell an application that something changed, but its arrival is not a complete business transaction. The receiver needs to verify the event using the provider’s documented method, establish what it refers to and decide whether that delivery has already been handled.

Duplicate or delayed events can be normal behavior in an integration. Where the event source supplies stable identifiers and ordering information, the application can use them. Where it does not, we need a different way to reconcile the current record. A timestamp shown in a screen should not quietly become the only protection against applying an old change.

An integration account should have the access required for the work it performs. We define how credentials are supplied, where they are used and what happens when they expire or are revoked. Secrets belong in the appropriate server-side configuration rather than in the public application bundle.

If the software serves different customer accounts or business units, the connection needs to preserve that separation. Selecting a record in the interface must not be enough to choose credentials the user is not entitled to use. We include the relevant permission checks in the request handling.

A connection depends on an external interface that can change. The service may introduce a new field, alter a permission scope or retire an endpoint the application uses. We identify those dependencies in the build and include the agreed configuration and operating notes in the handover.

The assignment should also cover practical constraints such as rate limits, sandbox access and manual steps required by the other service. A service account may need periodic access review or credential rotation. Establishing who maintains those arrangements helps the team understand what ongoing operation will require after the initial build.