Sequence Participant Limit

A sequence can hold up to 20,000 participants. This limit is enforced to ensure optimal performance and system stability.

Sequence Capacity

For an automatic sequence, if there are more than 20,000 records meeting the entry criteria, only 20,000 records will be added. The order criteria of the participants is not deterministic.

What Happens at the Limit

When a sequence reaches 20,000 participants:

• No new participants can be added until existing participants exit
• Automatic sequences will stop adding new participants
• Manual sequences will prevent manual addition of participants
• The sequence will continue to function normally for existing participants

Managing Sequence Capacity

To manage sequence capacity:

• Monitor participant counts: Regularly check how many participants are in each sequence
• Use exit criteria: Configure exit criteria to automatically remove participants who no longer qualify
• Review inactive participants: Manually remove participants who are no longer relevant
• Create additional sequences: Split large sequences into multiple sequences if needed

Best Practices

• Plan sequence capacity when designing sequences
• Use exit criteria to maintain capacity
• Monitor sequence metrics to track capacity usage
• Consider splitting very large sequences into multiple sequences
• Use Slow Drip to manage the flow of participants into sequences

Troubleshooting

If you’re unable to add participants to a sequence:

1. Check the current participant count
2. Verify the sequence hasn’t reached the 20,000 limit
3. Remove participants who have exited or are no longer relevant
4. Consider creating a new sequence if capacity is consistently an issue