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I'm needing to test our sandbox MuleSoft flow between our Sandbox (FC) to Sandbox (STPC) and getting the following error:

Activation failed. Try again.Error details:There was an error trying to publish the flow: Failed to upload asset to Exchange, groupId: 79990c05-6b1e-4816-90dd-991324c5444c, artifactId: c0c40d3d-5bbc-421c-8c60-7d39f9ebd3e6, version: 10.0.0. Exception: nullTrace ID: bc68d6483c6130f8d7be3996064fb4e5-ba544f4bbf71cf2f-01Include the Trace ID in your ticket to help the support team quickly diagnose, reproduce, and solve your issue.
  • I've used this flow 6 months ago & it worked fine?
  • I get the error when I try to activate the flow only? (it saves just fine)
  •  Any ideas on this error? I searched thru SF help/Agent force & it was useless

Getting Error when Activating a MS flow for Sandbox?

 

#MuleSoft Composer

2 answers
  1. Oct 30, 2025, 2:34 PM

    Had to place a Case with SF & they did something on their end to fix. 

    • Said "The issue that was causing the activation error was resolved by the Exchange team about an hour ago."
    • Now working as normal & can activate my flows.
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