Error: 21679, Severity: 16, Peer-to-peer publications only support a ‘%s’ parameter value of %s.
Error: 21680, Severity: 16, The Distribution Agent was unable to update the cached log sequence numbers (LSNs) for Originator %s, OriginatorDB %s, OriginatorDBVersion %d, OriginatorPublicationID %d. Stop and restart the Distribution Agent. If the problem persists, contact Customer S
Error: 21681, Severity: 16, The current user ‘%s’ does not have a valid linked server login mapping for non-SQL Server Publisher [%s]. Replication connects to the Publisher through a linked server; use the stored procedure sp_addlinkedsrvlogin to map the user’s login to this linked

Error: 21682, Severity: 16, Cannot publish table [%s].[%s]. The replication administraive user requires an explicit SELECT grant, or a SELECT grant through PUBLIC, in order to publish this table. A role-based SELECT grant, if one exists, is not sufficient.
Error: 21683, Severity: 16, Cannot verify administrator login privileges for Oracle Publisher %s. Verify connection information and ensure that you can connect to the Publisher through a tool like SQL*PLUS.
Error: 21684, Severity: 16, The replication administrative user for Oracle Publisher “%s” has insufficient permissions. Refer to the script /MSSQL/Install/oracleadmin.sql for the required permissions.
Error: 21685, Severity: 16, Request ‘%s’ for Oracle schema filter for Oracle publisher ‘%s’ failed.

Error: 21686, Severity: 16, The operation “%s” is not valid. Valid operations are “add”, “drop”, and “help”.
Error: 21687, Severity: 16, Schema filters are supported only for Oracle Publishers. The Publisher “%s” is a “%s” Publisher.
Error: 21688, Severity: 16, The current login ‘%s’ is not in the publication access list (PAL) of any publication at Publisher ‘%s’. Use a login that is in the PAL, or add this login to the PAL.
Error: 21689, Severity: 16, A NULL @schema value is invalid for add and drop schema filter operations.
Error: 21690, Severity: 10, The subscriber db cannot be the same as the publisher db when the subscriber is the same as the publisher
Error: 21691, Severity: 10, sp_mergesubscription_cleanup should be called on the subscription database
Error: 21692, Severity: 16, Failed to script the subscriber stored procedures for article ‘%s’ in publication ‘%s’
Error: 21694, Severity: 16, %s cannot be null or empty when %s is set to 0 (SQL Server Authentication). Specify a login or set security mode to 1 (Windows Authentication).
Error: 21695, Severity: 10, The replication agent job ‘%s’ was not removed because it has a non-standard name; manually remove the job when it is no longer in use.
Error: 21696, Severity: 16, The stored procedure only applies to Oracle Publishers. The Publisher ‘%s’ is a %s Publisher.
Error: 21698, Severity: 16, The parameter ‘%s’ is no longer supported.
Error: 21699, Severity: 10, Unable to reuse view ‘%s’ because it was not found. Re-creating all system table views. This is an informational message only. No user action is required.
Error: 21701, Severity: 16, Microsoft SQL Server Additive Conflict Resolver

This is applicable on below versions of SQL Server

SQL Server 2005
SQL Server 2008 R2
SQL Server 2012
SQL Server 2014

Hope this was helpful.

Thanks,
SQLServerF1 Team
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