Message type: E = Error
Message class:  TAX_EXEMPT - Message class for tax exempt certificate 
Message number: 037
Message text: Certificate &4. Can not change field &1 from &2 to &3
If a tax exemption certificate status is set to <LS>released </>or<LS>
in use</>, the following changes are restricted:
You cannot make changes to the tax exemption certificate.
The <LS>valid to date </>can only be changed to a date, which is greater
than the current date (system date).
The <LS>maximum amount</> can be increased.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
The system does not support the requested change.
If the requested change is required from a business point of view, you
should set the tax exemption certificate status to <LS>completed</> and
create a new tax exemption certificate with the appropriate data.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message TAX_EXEMPT037 indicates that there is an issue with changing a field related to tax exemption certificates. Specifically, the message states that the system cannot change the field (denoted as &1) from its current value (&2) to a new value (&3) for the specified certificate (&4).
Cause: This error typically arises due to one of the following reasons: Data Integrity Rules: The system has built-in rules that prevent certain fields from being changed once they have been set. This is often to maintain data integrity and ensure that tax exemption statuses are consistent. Status of the Certificate: The certificate may be in a status that does not allow changes. For example, if the certificate is already in use or has been processed in transactions, the system may restrict changes to certain fields. Authorization Issues: The user may not have the necessary permissions to make changes to the specified field. Configuration Settings: There may
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