How to fix Azure Single Sign on error: AADSTS90015: Requested query string is too long.

Question

We have used Single Sign On for many apps in the past. For one service, we keep seeing this error pop up when trying to log in. It does not occur everytime but is starting to happen more frequently.

Any idea on how to fix this? I don't have the groups assigned to this enterprise application or anything.

Request Id: 655af0df-d664-4c00-b69c-71a016742b00 Correlation Id: dcf32d50-0b9e-4162-b819-13d4e03d8df5 Timestamp: 2020-06-02T14:13:54Z Message: AADSTS90015: Requested query string is too long. Advanced diagnostics: Enable If you plan on getting support for an issue, turn this on and try to reproduce the error. This will collect additional information that will help troubleshoot the issue.

Answer 1

Hi @Brendan Huismann (Admin) ,

If you are using SAML for SSO and you are signing the SAML request, use HTTP-POST rather than using HTTP-REDIRECT.

-----------------------------------------------------------------------------------------------------------

Please do not forget to "Accept the answer" wherever the information provided helps you. This will help others in the community as well.