AEP Destinations Guardrails (Adobe Experience League, 2026)

Official Adobe Experience League documentation covering guardrails for data activation in Adobe Experience Platform.

Key facts re-verified 2026-05-27 (page last updated May 23, 2026):

General activation limits:

• Maximum audiences per destination: 250 (performance guardrail — not system-enforced; represents recommended operational ceiling)
• Maximum simultaneous audience activation: 50 per destination (performance guardrail)
• Maximum mapped attributes: 50 per destination instance (performance guardrail)
• Maximum destinations: 100 per sandbox (system-enforced)
• Edge personalization destinations: 10 of the 100 total (performance guardrail)

Streaming activation:

• No enforced per-second message limit; constraints determined by partner endpoint capabilities.

Batch (file-based) activation:

• Export frequency: one full daily export OR incremental every 3, 6, 8, or 12 hours (system-enforced).
• Maximum audiences per hour: 100 (performance guardrail).
• Maximum file size: 5 million records per file (system-enforced).
• External audiences per destination instance: 20 (system-enforced — applies to audiences from Federated Audience Composition, custom upload, or Audience Composition).

Ad-hoc activation:

• Audiences per job: 80 maximum (system-enforced).
• Concurrent jobs: 1 per audience (system-enforced).

Edge personalization:

• Custom personalization destinations: 10 maximum per sandbox (performance guardrail).
• Mapped attributes: 30 maximum per instance (performance guardrail).

Dataset exports:

• Size soft limit: 5 billion records (performance guardrail).
• XDM Experience Events: last 365 days (system-enforced).
• Other schemas: 10 billion records for compressed formats; 1 million for uncompressed parquet (system-enforced).

Destination SDK:

• Private custom destinations: 5 per sandbox (performance guardrail).

Retry policy: Experience Platform retries failed requests twice before abandonment.

Relationship to existing KG nodes:

• Validates constraint.aep-first-gen-export-500kb and constraint.aep-second-gen-export-1500kb (those limits originate from the Product Description contract, not this guardrails page; this page covers activation-layer limits).
• constraint.aep-activation-external-audience-limit-20 reflects the system-enforced 20-audience limit for external audiences.
• New (May 23, 2026 update): 250-audience performance guardrail is a new limit not yet represented in KG — drafted as candidate constraint.aep-batch-destination-per-destination-audience-250 in evolution-log/2026-05-27/web-refresh.md.

Version history:

• v1 (2026-05-05): Captured 20-audience external limit from April 7, 2026 page version.
• v2 (2026-05-27): Re-verified against May 23, 2026 page update; added full guardrail set including 250-audience performance guardrail.