P6 Web Services and Integration API Errors: "Invalid database instance while checking authentication mode" and "YOUR DATABASE SCHEMA TYPE DID NOT MATCH THE SCHEMA TYPE EXPECTED BY PRIMAVERA" (Doc ID 1332754.1)

Last updated on JUNE 29, 2016

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version 8.1 and later
Primavera Web Services - Version 8.1 and later
Primavera P6 Professional Project Management - Version 8.1 and later
Information in this document applies to any platform.

Symptoms

The following error occurs when logging into the P6 Integration API or Web Services:

Invalid database instance while checking authentication mode.


The following error will also be displayed in PrimaveraLogs:

YOUR DATABASE SCHEMA TYPE DID NOT MATCH THE SCHEMA TYPE EXPECTED BY PRIMAVERA
EXPECTING: PMDB FOUND: PPMDB
FOR DATABASE: <database connection string>
DATABASE WILL NOT BE AVAILABLE

Cause

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