Sending list to marketo - Error Multiple lead match lookup criteria

[LudovicHamard]

Hello 

I’m using tags for sending list to Marketo. It works for almost all records but for some records I have this error : “ {"skipped":{"Multiple lead match lookup criteria"

After investigation these records in error list are not in Marketo and not multiple in my looks.

Somebody already faced to this problema ?

Thanks !

Ludovic.