You have an external provider — how do you negotiate integration with them?

For successful integration with an external supplier, it is important to:

1. Define the goals and requirements of the integration — what data or services are needed, in what format, and with what frequency.
2. Discuss technical details: exchange protocols (REST, SOAP, FTP, etc.), data formats (JSON, XML), authentication methods, and security.
3. Agree on SLA — response time, availability, support, and responsibilities of the parties.
4. Discuss the stages and timelines of implementation, including testing and launch.
5. Document the agreements — technical specifications, service level agreement.

During communication, it is important to maintain transparency, regularly exchange status updates, and promptly resolve arising issues.