Message type: E = Error
Message class:  USMDZ3 - Nachrichtenklasse zum UI des User-Interfaces 
Message number: 302
Message text: &1 &2 Only use local currency when updating balance sheet accounts
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The SAP error message USMDZ3302 indicates that there is an issue with the currency used when updating balance sheet accounts in the system. This error typically arises in the context of financial postings or data uploads where the system expects local currency to be used for balance sheet accounts, but a different currency is being provided.
Cause: The error occurs when: You are trying to post or update balance sheet accounts using a currency that is not the local currency defined for the company code. The configuration settings in the SAP system enforce that balance sheet accounts must only be updated in local currency.
Solution: To resolve the error, you can take the following steps: Check Currency Settings: Ensure that the transaction or data upload you are performing is using the local currency for the balance sheet accounts. You can find the local currency for a company code in the configuration settings. Adjust the Posting: If you are using a
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