Article summary
Compare Zalo results by full phone number and task. Separate missing output from explicit status changes before choosing a small list to recheck.
Start with the apparent contradiction. Last week's sheet says “registered” and this week's says “unregistered.” If the number is needed for a booking confirmation, the difference is worth investigating. If the files were matched by nickname and the complete numbers differ, fix the match first.
Build an exception list from the two exports
Keep the full number, status, run date, and task name for each observation. Match on a verified complete number, including its country code, and spot-check against the source files. If one number appears several times in an export, establish whether it was submitted twice or came from separate jobs before comparing statuses.
| What the comparison shows | What to record |
|---|---|
| Two matching names refer to different phone numbers | Correct the match and keep both observations with their own numbers. |
| One file is registration screening and the other is activity screening | Record different tasks. Use the registration task when you need its status. |
| A clear result appears in one file and the other row or value is missing | Mark it as missing and review the job and export. |
| The same task returned explicitly registered and unregistered for the same number | Record a status discrepancy and preserve both observations. |
| The same number and task produced two clear, matching results | Keep the most recent date. Recheck when a new decision calls for it. |
Select the exceptions that affect current work
Suppose 30 numbers appear on the list. Eight were matched incorrectly, 12 lack a clear new result, and 10 show different statuses. If only four affect today's follow-up, start there. Check that the customer still uses the number. Rerun the same registration task for the numbers with a verified source and a genuinely unresolved result. Handle the other source-data issues separately.
Save the retest as a new observation. The current work sheet can say “rechecked for this booking” or “still pending, use existing contact channel.” On a later review, the exception list will show whether you corrected a match, recovered a missing row, or recorded a new result.
