MS Edge is our preferred Chromium browser.
Over the last couple of weeks we have started to receive a Bad Message 431 error when we try to relog in to expired sessions. Has anyone else experienced this change?
Has anyone identified a fix?
Hi @TimWard70 Based on my experience with MS edge (not specific to Anaplan), The "Bad Message 431" error typically indicates that the request headers are too large for the server to process. Typical resolutions include: Clear Cookies and Cache: Start by clearing your browser's cookies and cache. This can often resolve issues related to large headers by removing old or unnecessary cookies. Check Cookie Size: If you have control over the server or application, check the size of the cookies being set. You may need to reduce the size of the cookies or the number of cookies being used. Server Configuration: If you have access to the server configuration, you might be able to increase the maximum header size. This is typically done in the server's configuration files (e.g., for Nginx or Apache).Latest update: Make sure you have latest browser updates installed. If you believe this is Anaplan specific, best possible way is to open a ticket with Anaplan tech support.
I use edge, chrome and arc regularly and haven't had this issue. As Tim says please raise a ticket so we can look at this in more detail.
Hi everyone 👋 If you build or maintain Anaplan models, you've probably hit the same walls I kept hitting. Some basic questions about a model's structure have no single screen to answer them. You end up clicking through modules and pages one by one, or writing API scripts just to get a list. These were the gaps that…
Hi Everyone, We have a requirement in Anaplan Consolidation & Reporting (Fluence) where the Entity Structure needs to change effective January 2026. The key requirement is that the existing entity structure should continue to be applicable for all reporting and consolidation periods through December 2025, while the new…
We've been building a tool called aplan4sheets and we'd genuinely like input from this community — both on what we've built so far and on what we should prioritize next. The problem we set out to solve: Anaplan's Excel add-in is Windows-centric, and there's no real native way to pivot Anaplan data in Google Sheets. We…
