Documentation

AEP Audience Activation Fails Due to List Limit in Adobe Campaign Managed Cloud

Last update: Tue Apr 28 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

In Adobe Campaign Managed Cloud, activating an audience from Adobe Experience Platform (AEP) materializes the audience as a Campaign list (nms:group) along with the required storage and background jobs. When the Campaign instance reaches the maximum number of AEP-created lists defined by the NmsCdp_Aep_Audience_List_Limit option, Create audience jobs for new audiences fail. Because the list is never created, subsequent Load Audience jobs fail with database errors indicating that the list record doesn’t exist, even though activation appears successful in AEP. To fix this, identify the guardrail condition and adjust the audience list limit safely without introducing performance or governance issues.

Description description

Environment

  • Product: Adobe Campaign Managed Cloud
  • Product Version: v8
  • Server Build: 9368
  • Console Build: 9383
  • Product Offering: E-MAIL
  • Environment: Production

Issue/Symptoms

  • From the AEP side:

    • AEP destination dataflows for Adobe Campaign Managed Cloud appear successful or partially successful.
    • Activation counts (qualified profiles sent) look correct.
    • No obvious AEP-side platform errors related to the dataflow.

  • From the Adobe Campaign side (Audience Job / Audit):

    • The activated audience doesn’t appear as a usable list in Campaign.

    • In the Audience Job Audit for the affected audience, the following error appears:

      • During Create audience:

        • NMS-470323 Maximum audience list size limit of 25 reached. (or another configured limit value)

      • During Load Audience:

        • ACC-0001-500 Error occurred while execution for flowId < …>
        • Cannot load document of type ‘List (nms:group)’ satisfying condition …
        • WDB-200011 The requested database record does not exist.

    • The Load Audience step fails repeatedly for the affected audience.

    • Audiences created before the limit was reached continue to load successfully.

    • No recent configuration changes are visible on the customer side, which makes the issue appear sudden.

  • Functional impact:

    • The intended audience doesn’t appear as a usable list in Campaign.
    • Campaign users can’t target or use the affected AEP audience in deliveries or workflows.

Resolution resolution

To fix this issue, follow these steps:

  1. Confirm that the audience list guardrail is causing the failure.

    1. In the Adobe Campaign v8 client console, go to Administration → Platform → Options.

    2. Locate the NmsCdp_Aep_Audience_List_Limit option and note its current numeric value (For example: 25).

    3. Review the approximate number of AEP-created lists currently present under Explorer in the AEP Audience or relevant list folders.

    4. Open the Audience Job Audit for the failing audience and verify the following:

      1. A Create audience job failed with:

        NMS-470323 Maximum audience list size limit of < limit> reached.

      2. A subsequent Load Audience failed with:

        ACC-0001-500 and WDB-200011 referencing List (nms:group).

    5. If these conditions are met, the issue occurs because the AEP audience list limit guardrail has been reached, preventing the list from being created.

  2. Review and clean up unused AEP-created lists before increasing the limit.

    1. With your Campaign and marketing teams, review existing AEP-created lists in Adobe Campaign.

    2. Identify lists that are no longer used in:

      1. Active workflows
      2. Recurring deliveries
      3. Journeys or automations

    3. Delete or retire unused lists, when appropriate, to free up capacity.

      Note: Confirm with the Campaign team before deleting any list that may still be referenced.

    4. Recheck the total number of active and required AEP-created lists after cleanup.

  3. Adjust NmsCdp_Aep_Audience_List_Limit conservatively.

    If you still need more active AEP audiences than the current limit allows:

    1. In Administration → Platform → Options, open NmsCdp_Aep_Audience_List_Limit.

    2. Increase the value only to meet near-term requirements, for example:

      Increase from 25 to 50 instead of a large jump.

    3. Document the following details:

      1. The previous value
      2. The new value
      3. Who approved the change

    4. Save the change and inform your team that the affected audience must run through a new Create/Load cycle after this change to create the missing list.

    Important: This option is a guardrail. Increasing it without cleanup and monitoring can cause performance and governance issues in Campaign.

  4. Re-trigger audience creation from Adobe Experience Platform.

    1. In AEP, perform one of the following actions for the affected audience:

      1. Deactivate and re-activate the audience for the Adobe Campaign Managed Cloud destination, or
      2. Create a new destination flow for the same Campaign instance and audience.

    2. In Adobe Campaign, monitor Audience Jobs and confirm:

      1. A new Create audience job runs and completes successfully without NMS-470323.
      2. A new nms:group list is created.
      3. Subsequent Load Audience jobs complete successfully without ACC-0001-500 or WDB-200011 errors.

  5. Verify that the issue is resolved.

    1. Confirm that the audience list is visible in Adobe Campaign and contains the expected profiles.
    2. Confirm that new Load Audience jobs complete successfully.
    3. Verify that AEP continues to report successful activation runs that align with Campaign load times.

  6. If the issue persists after completing the resolution steps, escalate the case to Adobe Support and include the following details:

    1. The NmsCdp_Aep_Audience_List_Limit values before and after the change.
    2. The total number of AEP-created lists.
    3. Audience Job logs for both Create audience and Load Audience jobs.
    4. The AEP destination flow ID and recent run IDs.

Notes:

  • Why this guardrail exists and why it shouldn’t be increased arbitrarily:

    • Each AEP audience activated to Adobe Campaign creates:

      • A new list (nms:group) and typically a dedicated physical table.
      • Recurring Create audience and Load Audience jobs.
      • Additional audit and log volume.

    • Having too many audience lists increases:

      • Database catalog size and schema complexity.
      • Job volume and processing windows.
      • Storage and bandwidth usage.
      • Operational complexity for troubleshooting, cleanup, and audits.

  • Therefore:

    • The default limit, such as 25, is a conservative and protective setting.

    • It is highly recommended to:

      • Clean up unused AEP-created lists before increasing the limit.
      • Increase the limit incrementally and with clear ownership.
      • Periodically review and retire unused AEP audiences.
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