# Salesforce connector API calls **URL:** \ **Category:** HubSpot-built Apps\ **Created:** [December 10, 2025, 9:31pm UTC](https://community.hubspot.com/t/salesforce-connector-api-calls/143900 "2025-12-10T21:31:29Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![karenkaz](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karenkaz/32/67592_2.png) [@karenkaz](https://community.hubspot.com/u/karenkaz)\ **Post date:** [December 15, 2025, 3:24pm UTC](https://community.hubspot.com/t/salesforce-connector-api-calls/143900/4 "2025-12-15T15:24:10Z")
Replying to my own post in case it helps anyone else who shares this question. I reduced the API calls allocated to HubSpot to minimize the chance of impacting our other integrations and clicked the resync button on the 340k records that needed to be resynced. Some things I learned: 1. When there’s a large number of records, apparently the integration syncs it in batches of 1k. There does not appear to be any way to adjust this. You have to manually click resync for every 1k batch. 2. The integration is definitely not using 1 API call per record, assuming the “API calls used” number in Sync health is accurate. It looked more like 80-100 API calls per 1000 records. 3. Each 1k batch of resynced records could take anywhere from 5 seconds to 2+ hours to resync. No idea why there is so much variation per batch without knowing more about what is happening. Anyway, hope that helps others with this same question! --- _[View the full topic](https://community.hubspot.com/t/salesforce-connector-api-calls/143900)._