Unable to create the new employee number under the Employee segment due to Child Values are Exhaust

Summary: Unable to create the new employee number under the Employee segment due to Child Values are Exhausted

Content (please ensure you mask any confidential information): we have one Future2 segment in the instance having length of 4. we created the parent value and that is fully used . So for future purpose how can we use this segment. We are thinking to increase the segment length from 4 to 6 and redeploy the instance and will define new parent value and use in system.

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