Is there a limit to the number of records we can upload to a contact list?

Question

I've successfully uploaded a large contact list (~115,000 records) multiple times.  It works, and I see that there are ~115,000 contacts in my list.  I then go back in later, and it only shows that I have 65,000 records in the list.  Every record over #65,000 was automatically dropped.  And now we've got alums trying to login but can't because their record is one that was dropped.  Is this a limitation to my file type (i.e. the old Excel file size limitation of 65,000 rows)?  I used a CSV, so I wouldn't think that was it.  Or is there something in our account license preventing over 65,000 contacts in a single list?  We have other contact lists, so in total, we have over 65,000 contacts.  I just don't get why it would successfully complete the upload but then drop half of my contacts (with no notification or error).

Mishraji · Accepted Answer

dmccoyny - Not sure whether we have a limit to the number of contacts in a mailing list, but it is surely more than 65K. I have had contacts lists with 200K contacts.This could be something on your license or the file that you are uploading has duplicates(which seems very unlikely).

dmccoyny · Answer

I reviewed our account and didn't see any restrictions.  I also checked my file, and no dupes present.  However, I was able to amend our contact list by importing the remainder of the file (that was dropped), and so far the record count is holding.  So I haven't yet found a reason for why the records dropped, but I at least have a working band-aid.  But since I don't yet have an explanation as to what happened, I'm going to have to monitor the next file I upload daily for dropped records.  Obviously that's frustrating.

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