Start with the source
Use a published API or licensed feed when available. Define which public fields you need, how long you need them and how you will handle removal requests. Do not use proxies to access private data without permission.
Make the job resilient
Respect source limits, use backoff, cache repeat requests and stop on authentication or access errors. Estimate GB consumption before scaling. Datacenter can suit compatible sources; residential traffic serves different network requirements.
Start small, then scale
Validate your application, destination and expected traffic with a small order. Record successful settings and expand only when the workflow behaves as expected. Use the live quote to see the total and available volume savings.