Why can't I submit a candidate?
Last updated: April 10, 2026
This article explains why you may be blocked from submitting a candidate and how to resolve it.
In this article
How duplicate detection works
What triggers a duplicate block
Using the correct email address
Troubleshooting
How duplicate detection works
HirePort automatically checks for duplicate candidates before a submission goes through. The system scans for matches based on three data points:
Email address
Phone number
LinkedIn profile URL
If a match is found, the submission will be blocked to prevent duplicate introductions.
What triggers a duplicate block
Your client controls the scope of duplicate checking. Depending on their settings, HirePort will check for duplicates either:
On the current job only — the candidate has already been submitted to this specific vacancy, or
Across all jobs — the candidate has been submitted to any vacancy that the client has attached agencies to, past or present (they also decide on the look-back period in this case, e.g. the last 12 months).
If a match is found within the applicable scope, you will not be able to proceed with the submission.
Using the correct email address
A common cause of duplicate blocks is using the wrong email address when creating a candidate profile.
Always use the candidate's personal email address.
If you use your own email address or your company email address more than once, the system will detect it as a duplicate and block the submission, even for different candidates.
💡 Tip: Double-check that the email address entered belongs to the candidate, not to you or a colleague, before submitting.
Troubleshooting
I'm being blocked, but I don't think it's a duplicate. Check whether the candidate's email address, phone number, or LinkedIn profile has been used in a previous submission — either by you or another agency. If your client checks across all jobs, a past submission to a different vacancy could trigger the block.
I used my own email address by mistake. You will need to update the candidate profile with their correct personal email address before resubmitting.
I'm seeing a different error message. If you receive an error that isn't related to duplicate detection, please contact HirePort Support directly for assistance.
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