Sync in service based records with sync expression rule

Hi All,

I'm encountering an issue with syncing data in Service based records. Here are the details:

- I have scheduled a full sync, but it only occurs once per day.
- The API data can update multiple times throughout the day. so I set up the sync expression rule for multiple daily syncs. However, I've observed the following issue when running the "Sync Records" smart service:

- If the API returns fewer rows than the current record, the old data is not being removed after the sync.

For example : currently record has 40 rows and now the API returns 15 and I see all 40.

Has anyone faced a similar issue or have any suggestions on how to resolve this?