ST-2026-177 · Enforcement & amendments
Google Ad Manager SOAP API sunsets v202508 as v202511 enters deprecation
On the last weekday of August 2026, Google Ad Manager SOAP API v202508 reaches sunset and becomes unavailable while v202511 enters deprecation and remains available until its November 2026 sunset.
Previous state
Before the August lifecycle boundary, v202508 remains available in its deprecated period and v202511 remains an active non-deprecated SOAP API version.
Current state
At the last weekday of August 2026, v202508 is no longer available and v202511 becomes deprecated; v202511 remains callable during its warning period until the last weekday of November 2026.
Affected users
Who needs to care
Google Ad Manager SOAP API integrations still calling v202508 or using v202511 without a migration plan to a newer supported version.
Required response
What to do
Move v202508 integrations to a supported version before 31 August, inventory v202511 usage, and plan the next upgrade before v202511's November sunset.
Evidence boundary
What the source does not prove
Google defines deprecation as advance warning and sunset as the point when a version is no longer available. v202508 sunset and v202511 deprecation happen at the same August boundary but are not equivalent lifecycle states.
Lifecycle history
Dated event sequence
- Current schedule updated
Google's published SOAP API schedule lists v202508 for August sunset and v202511 for August deprecation.
- August lifecycle boundary
The last weekday of August: v202508 sunsets while v202511 enters deprecation.
- v202511 sunset boundary
The last weekday of November 2026 under the current schedule.
Evidence ledger
First-party sources
- 01Google Ad Manager SOAP API — Deprecation Schedule
Official Google Ad Manager SOAP API deprecation and sunset schedule · 2026-05-20
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