What are some limitations of timestamp-based delta queries?

Rick Huang 51 Reputation points

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?

Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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