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Support Article

Unable to reschedule agent due to computation errors



The agent scheduled to run at midnight fails with an exception sometimes.

Error Messages

Unable to reschedule agent due to computation errors. Invalid delay interval: -391088

Steps to Reproduce

Schedule an agent to run at midnight.

Root Cause

A defect in Pegasystems’ code or rules:
If the agent runs even a fraction of a second earlier, it results in a negative value in the delay interval calculation.


The issue is resolved in Pega 7.2. Upgrade to Pega 7.2.


Perform the following local-change:
Add five minutes to the agent's scheduled start time.

Published June 17, 2016 - Updated October 8, 2020

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