The Scenario
You are a sales ops manager. Your team closed 60 deals over the past month and those contacts, now paying customers, are still enrolled in active Mixmax outbound sequences.
You have their email addresses in an Excel workbook. You need every one of them removed from every active sequence before this afternoon's outbound wave goes out, because sending acquisition emails to existing customers is the kind of mistake that ends up in a Slack message from your CEO.
The bad version of this morning:
- You open Mixmax and navigate to the sequence section
- You search for the first contact in the sequence recipient list
- You cancel their enrollment
- You search for the next contact
- There is no bulk action for "remove this list of emails from all sequences"
- It is 2 PM, the outbound wave is running, and you have processed 22 of 60 contacts.
The fast version is one prompt.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Excel workbook that reads the data and calls Mixmax directly, so you do not have to search for a single contact in the sequence recipient list.
Open the SheetXAI sidebar and type:
Remove all 60 emails in column A of this workbook from every active Mixmax sequence they are enrolled in. Write "Cancelled" or the error into column B for each row.
SheetXAI reads column A, finds every active sequence enrollment for each email, cancels them, and writes the result into column B. All 60 contacts, before the outbound wave.
What You Get
60 contacts removed from active sequences, with a status column per row:
- "Cancelled" — all active sequence enrollments for this contact were cancelled
- "Not enrolled" — the contact was not found in any active sequence (also written, so you know it was checked)
- Error message — for any row that failed, so you can handle it before the wave
The "Not enrolled" status is as important as the "Cancelled" one. You want to know which contacts you checked, not just which ones had something to cancel. If your VP asks whether all 60 were verified, the workbook is your answer.
Want to also add those contacts to the Mixmax unsubscribe list in the same prompt, so they do not get re-enrolled by accident? Tell SheetXAI to do both. It adjusts.
What If the Data Is Not Quite Ready
Closed-deal workbooks assembled from CRM exports have their own issues. SheetXAI handles them in the same prompt.
When some emails in column A are not formatted correctly
The CRM export had a few malformed email addresses. You want those flagged before the cancellations run.
Validate each email in column A. For any email that does not match a valid email format, write "Invalid email — skipped" into column B. For valid emails, cancel all Mixmax sequence enrollments and write the result into column B.
When you only want to cancel from specific sequences
You do not want to cancel these contacts from all sequences, just from the two acquisition sequences still running.
Cancel Mixmax sequence enrollments only for the sequences named "Q2 Acquisition" and "Enterprise Outbound" for each email in column A. Leave enrollments in other sequences untouched. Write the result into column B.
When the workbook has contacts who are not yet in Mixmax
Some of the 60 closed deals were hand-tracked in the workbook and never imported into Mixmax. You want to skip those gracefully.
For each email in column A, check if the contact exists in Mixmax. If not, write "Not a Mixmax contact — skipped" into column B. If yes, cancel all active sequence enrollments and write the result into column B.
When you need to cancel, unsubscribe, and report in one shot
Closed deals need to be cancelled from sequences, added to the unsubscribe list, and summarized for compliance, all before the afternoon wave.
For each email in column A: cancel all active Mixmax sequence enrollments, add the email to the Mixmax unsubscribe list, and write the combined result into column B. At the bottom, add a count of how many were cancelled, how many were already not enrolled, and how many were added to the unsubscribe list.
The pattern: describe the full operation and let SheetXAI handle the per-row conditional logic.
Try It
Get the 7-day free trial of SheetXAI and open any closed-deal or opt-out workbook, then ask SheetXAI to cancel the sequence enrollments. The Mixmax integration is included in every SheetXAI plan. For managing unsubscribes, see how to bulk-add opt-outs to the Mixmax unsubscribe list or the Mixmax in Excel overview.