Preparing for peak trading

A checklist for getting your integration ready for Black Friday, product launches, and other high-volume periods.

Preparation well in advance makes the difference between a smooth peak and a stressful one.

4 weeks before

  • Confirm all streams are active and processing normally

  • Resolve any existing failures in the event log — entering peak with a backlog makes it harder to spot new issues

  • Check destination system API rate limits (ERP, 3PL) and confirm they can handle elevated throughput; raise with HC if uncertain

  • Complete any planned integration changes before this point — avoid configuration changes in the final weeks before peak

1 week before

  • Verify alert settings in Settings > Notifications: confirm the right people are receiving alerts and thresholds reflect peak expectations

  • Confirm team access to the Control Panel — anyone who may need to monitor or act during peak should be able to log in

  • Run an end-to-end test order through the full flow and verify it arrives correctly at the destination

  • Review the bulk resend process with your team so everyone knows the procedure if failures need to be reprocessed

On the day

  • Check the Control Panel dashboard before trading opens

  • Monitor the event list during peak hours — failed events, retrying events, and volume patterns

  • Keep HC's contact details to hand

If something goes wrong

Contact HC immediately using the urgent contact method. When you reach out, provide:

  • The stream name

  • The volume of failures or affected events

  • The error messages shown in the Control Panel

Do not bulk-resend failed events until HC has confirmed the root cause. Reprocessing events before the underlying issue is fixed can result in duplicate records or compounded errors.

After peak

  • Review the event log for the peak window

  • Reprocess any failures that were held back during the event

  • Check inventory and financial postings for the period to confirm accuracy