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400 Bad Request Request Header Or Cookie Too Large Error Logging in to Unifier Cloud Environment After Upgrading to 19.12.4 or 20.4 (Doc ID 2664509.1)

Last updated on APRIL 24, 2023

Applies to:

Primavera Unifier Cloud Service - Version and later
Information in this document applies to any platform.


On : Unifier 19.12.4 and 20.4

Immediately after upgrading to 19.12.4 or 20.4, users started having intermittent issues logging in to Unifier.

Users received the error noted below, and error would persist even after clearing cache cookies and history.

400 Bad Request Request Header Or Cookie Too Large

The issue can be reproduced at will with the following steps:
1. Go to logon page and attempt to log in


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