Message type: E = Error
Message class:  5U - HR US: Messages 
Message number: 084
Message text: Enter tax modifier
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The SAP error message 5U084, which states "Enter tax modifier," typically occurs in the context of tax determination in SAP systems, particularly when dealing with sales and distribution (SD) or financial accounting (FI) modules. This error indicates that the system requires a tax modifier to be entered for a specific transaction, which is necessary for proper tax calculation.
Cause: Missing Tax Modifier: The tax modifier is not entered in the relevant field during the transaction. This can happen if the user overlooks the field or if the system configuration does not automatically populate it.
Configuration Issues: The tax configuration in the system may not be set up correctly, leading to the requirement for a tax modifier that is not being provided. Transaction Type: Certain transaction types may require specific tax modifiers that are not applicable to others, leading to this error when the required information is missing.
Solution: Enter the Tax Modifier: The most straightforward solution
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