What I need
API documentation, sample requests and responses, test access and field definitions.
Ivan Matiushkin · Independent contractor · Poland · remote collaboration
API and ERP integrations
Connect two systems to transfer orders, update statuses or import documents, with error handling and duplicate checks.
Moving orders and statuses by hand takes time. I can connect a selected data object between your systems, including field mapping and handling failed responses.
Tasks you can bring
Need to transfer CRM orders to an ERP, update invoice statuses or investigate records missing from an existing sync? I can start with one flow or the diagnosis of a repeatable failure. For a repair, start with the problem and available documentation; permission to change code and test access are checked before an estimate.
Describe your taskOne data flow between two systems
What you receive
A working adapter, data mapping, operation logs and tests. Retries and duplicate protection follow the agreed process.
How I check the result
A valid record reaches the destination; duplicates and connection failures are handled according to the agreed scenarios.
Feasibility depends on API access, licensing and permissions. The scope does not automatically include configuring an entire ERP or a certified vendor implementation.
See a sample acceptance report →
A first stage is a way to start, not a limit on the project. Larger applications and ongoing improvements can be agreed in subsequent stages.
Price and timing are agreed after reviewing your materials, before paid work begins. Contracts and payments can be handled through Useme where compatible with the client. Useme is an intermediary, not my company.
From task description to delivery
- Describe the process or current application behaviour. Relevant samples and documentation depend on the task; do not send confidential information.
- I check access and constraints. I agree with you on the scope, price and acceptance tests.
- I implement the stage, show the test results and deliver the code with instructions.
Try an example
The demonstrations below use synthetic data. They are not client deployments.
Try an example →Before you start
Can you connect my CRM to an ERP?
First I check the available API, authentication, limits and test access. I propose one flow, such as orders or invoice statuses, and agree with you which system owns each field. The demonstration is a representative data model, not a certified connector for a particular vendor.
What happens if an API request fails?
A timeout can occur after the destination has already accepted a record. The agreed design must distinguish a safe retry from a second write. Stable record identifiers, operation logs and reconciliation help detect missing records and avoid duplicates.
What should I prepare for an integration estimate?
Send the names of the systems, API documentation, the direction of the transfer, approximate volume and a sanitised example. Describe how quickly changes must appear in the destination. Do not send passwords or production credentials through the contact form.