Email marketing campaign activities fail after the first 20 emails. The Campaign status says "In Progress" with 17 successes and 3 failures. System Jobs shows a Workflow regarding the Campaign with the System Job Name "ActivityPropagation" which is "Waiting for retry due to error." When I resume the job, it goes to In Progress before returning to Waiting for retry, but the combined successes and failures in the campaign status increases by 20. (It is sending 20 emails, then failing and when the job is resumed it sends the next 20 then fails.) When I open the system job it says "Invalid Recipient Type." The details message is "The 'Update' method does not support entities of type 'bulkoperation'." The Activity propagation workflow is Microsoft.Dynamics.Marketing.Workflows (9.0.0.0):Microsoft.Dynamics.Marketing.Workflows.ActivityPropagationOperation. When I view the properties of that, there is a property name "Batch size." which is set to 20. Everything works fine for tests of less then 20 recipients. How do I increase this limit from 20 to something closer to infinite?
Thank you,
Matt
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