We noticed that delta links support querying via timestamps: https://learn.microsoft.com/en-us/graph/api/driveitem-delta?view=graph-rest-1.0&tabs=http#example-4-retrieving-delta-results-using-a-timestamp . Are there any special limitations using this timestamp-based delta query versus a normal delta query, e.g.: being more costly to use and hence more rate-limiting by using the timestamp, not capturing all changes where modifiedTime doesn't change, e.g. we noticed that permission changes don't change lastModifiedTime, so would permission changes be unintentionally excluded, anything else? We also noticed that the timestamp-based delta query only works for timestamps up to ~4 months in the past before hitting a resyncRequired error. Is this expected?

What are some limitations of timestamp-based delta queries?

Rick Huang 51

We noticed that delta links support querying via timestamps: https://learn.microsoft.com/en-us/graph/api/driveitem-delta?view=graph-rest-1.0&tabs=http#example-4-retrieving-delta-results-using-a-timestamp.

Are there any special limitations using this timestamp-based delta query versus a normal delta query, e.g.:

being more costly to use and hence more rate-limiting by using the timestamp,
not capturing all changes where modifiedTime doesn't change, e.g. we noticed that permission changes don't change lastModifiedTime, so would permission changes be unintentionally excluded,
anything else?

We also noticed that the timestamp-based delta query only works for timestamps up to ~4 months in the past before hitting a resyncRequired error. Is this expected?

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What are some limitations of timestamp-based delta queries?