Are Custom Actions async? | Community
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Michael_Soprano
Level 10
July 19, 2026
Question

Are Custom Actions async?

  • July 19, 2026
  • 2 replies
  • 19 views

Are Custom Actions async?

2 replies

SatheeskannaK
Community Advisor
Community Advisor
July 20, 2026

@Michael_Soprano I had responded to this a few months ago. Let me know if you need any additional details. 

 

Thanks, Sathees
Pulkit_Jain_
Adobe Employee
Adobe Employee
July 20, 2026

AJO Custom Actions are synchronous from the journey’s perspective.

The journey waits for the API response before moving to the next step, even though the HTTP call is processed asynchronously internally.

  • Max timeout typically up to 30s
  • For true async processing, return quickly (200/202) and continue later via another event/webhook

https://experienceleague.adobe.com/en/docs/journey-optimizer/using/connect-systems/external-systems/external-systems#timeout