Cloud providers
AWS, Google Cloud, Microsoft sub-processor terms
How much notice AWS, Google Cloud and Microsoft give before adding a sub-processor, and where each publishes its list, quoted with the date read.
Each provider’s DPA states a period for a new sub-processor. Some give you that long to object once they tell you; others promise that much notice before the new company starts.All state a notice period, not a period to object.Each is quoted from the provider’s own document with the date we read it; we do not score or rank them.
The terms, quoted
Amazon Web Services
Sub-processor window
30 days' notice before a change
AWS will update this page at least 30 days before engaging a new sub-processor, and if you subscribe for updates, AWS will notify you by email of changes to this page.
aws.amazon.com/compliance/sub-processors/ · read September 30, 2026 · snapshot 0fdc133132e7
How notice is sent
The sentence quoted above also says how notice is sent.
Where the list is
- aws.amazon.com/compliance/sub-processors/ · last read October 1, 2026
Google Cloud
Sub-processor window
30 days' notice before a change
When Google engages any New Subprocessor during the Term, Google will, at least 30 days before the New Subprocessor starts processing any Customer Data, notify Customer of the engagement (including the name, location and activities of the New Subprocessor).
cloud.google.com/terms/data-processing-addendum · read September 10, 2026 · snapshot 3378541a2685
How notice is sent
We have not isolated a sentence on this in the pages we read. That is a statement about our record, not about Google Cloud.
Where the list is
- cloud.google.com/terms/subprocessors · last read September 30, 2026
Microsoft
Sub-processor window
30 days' notice before a change
Microsoft will give Customer notice and, as applicable, update the website and provide Customer with a mechanism to obtain notice of that update of any new Subprocessor at least 6 months in advance of providing that Subprocessor with access to Customer Data or for subprocessors that support artificial intelligence functionality, 30 days’ notice with the ability to disable use of that subprocessor until at least 6 months after notice.
www.microsoft.com/licensing/docs/documents/download/MicrosoftProductandServicesDPA(WW)(English)(May2026)(CR).docx · read October 1, 2026 · snapshot 74eab0c1ba8c
How notice is sent
We have not isolated a sentence on this in the pages we read. That is a statement about our record, not about Microsoft.
Where the list is
- learn.microsoft.com/en-us/microsoft-365/copilot/copilot-subprocessor-overview · last read October 1, 2026
How this page stays current
The pages quoted here are re-read on a schedule and every reading is kept as a dated, hashed copy. The quotes on this page are read from those copies when the page is served, so a rewritten clause appears here as the new wording, and the change appears on the provider’s record. How the record is kept.
Related: every window we hold, what a sub-processor is, AI providers' data terms.
What this page is not
It is not legal advice, and it is not your agreement. It quotes published documents on the dates shown; a signed agreement or negotiated addendum with a provider governs.
Xither Staff Writer · reviewed October 1, 2026. Quotes are read from the record when the page is served.