Software Error Codes

General Software Error Codes

Error 404 – Not Found

The error code 404 indicates that the requested page or resource does not exist on the server. This usually occurs when an incorrect URL has been entered or the resource has been deleted or moved.

• Cause: Typo in the URL, restructuring of websites, deleted content.
• Solution: Check if the address was entered correctly. Search for the resource using the search function or a site index. For internal applications, the system administrator can check if a link points to an incorrect or outdated resource.

Error 500 – Internal Server Error

This error indicates a general problem on the server that is not further specified. Causes can be programming errors, faulty configurations, or failures of server services.

• Cause: Faulty server configuration, issues in application logic, server overload, runtime errors in code.
• Solution: As an end user, you can reload the page or try again later. Developers and administrators should check server logs for clues and restart the server if necessary.

Error 401 – Unauthorized

Indicates that authentication is required to access a resource, but no or incorrect credentials were provided.

• Cause: User not logged in, session expired, incorrect credentials.
• Solution: Log in again and verify username and password. Missing permissions should be checked and granted by an administrator.

Error 403 – Forbidden

The server understood the request but refuses to fulfill it despite possibly correct authentication.

• Cause: Missing access rights, blocked content, IP blocking.
• Solution: Check user rights and group memberships. Request new rights if necessary. Contact IT support.

Error 408 – Request Timeout

The request was not answered in time; the server closed the connection.

• Cause: Slow internet connection, server overload, network interruptions.
• Solution: Reload the page, check network connection and firewall. Ask IT support for help.

Error 503 – Service Unavailable

The server is temporarily unavailable, for example due to overload or maintenance.

• Cause: Server overload, maintenance, server restart.
• Solution: Wait a moment and try again later. For own servers, check services and logs, observe maintenance announcements.

---

SaaS-Specific Error Codes

Many SaaS platforms use their own error codes for more precise diagnosis of permission, license, and security issues.

Error Code	Meaning	Causes	Solution
135	MaxConnectionsPerUserReached	Maximum connections per user reached	Close connections or wait until resources are free
150	MissingSystemRight	Missing system permission	Ask administrator to grant the necessary rights
151	MissingPersonalRight	Missing personal permission	Check access rights and have them extended if necessary
202	LockedByAnotherUser	Resource locked by another user	Wait until the resource is released
2001	Subscription quantity not changeable during suspension	Subscription is currently suspended	Reactivate subscription or wait for activation
2002	Subscription quantity outside allowable limits	Quantity change exceeds limits	Observe allowable quantity ranges
2085	Offer not authorized for purchase	Product unavailable or license issues	Contact support
341	InvalidUsername	Invalid username	Check and enter username correctly
351	InvalidPassword	Invalid password	Check or reset password
800001	Partner token missing	Missing authentication token	Send token correctly in the request context

 

 

---

This overview helps to quickly identify and specifically resolve common errors in the software and SaaS area to ensure smooth operation of applications.