Message type: E = Error
Message class: 5U - HR US: Messages
Message number: 420
Message text: Language key/Period modifier & & combination has not been defined
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Check that this Language key and Period modifier combination is
defined in table T549N.
Error message extract from SAP system. Copyright SAP SE.
5U420
- Language key/Period modifier & & combination has not been defined ?The SAP error message 5U420 indicates that there is an issue with the language key and period modifier combination in the system. This error typically arises when the system is unable to find a valid combination of language and period modifier for a specific operation, such as reporting or data entry.
Cause: Missing Configuration: The language key and period modifier combination has not been defined in the system. This could be due to a lack of configuration in the relevant SAP modules. Incorrect Data Entry: The user may have entered an invalid language key or period modifier that does not exist in the system. Transport Issues: If the configuration was recently transported from another system, it may not have been properly set up or may be missing.
Solution: Check Configuration: Go to the relevant configuration settings in SAP (usually in the SPRO transaction). Navigate to the area where language keys and period modifiers are defined (e.g., Financial Accounting,
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