Hi @Kelvin Shee ,
OS error 3 means path not found. You must specify a UNC network share such as \<computername>\snapshot rather than a local path when using pull subscriptions and/or a remote Distributor.
Here is a similar thread which you can refer to.
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/91bc83d3-9e63-4767-9451-2295bd895d70/sql-server-replication-os-error-3?forum=sqlreplication
Best regards,
Seeya
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