Message type: E = Error
Message class:  OILQU - Messages for Market Data: Maintenance Views for Commodities 
Message number: 003
Message text: Currency for quotation cannot be changed (entries with & already exist)
The currency for the quotation has been changed. However, the price
quotation table OICQP already contains quotations in the old currency.
The system does not allow you to process quotations with different
currencies if they have the same source, type and number.
Reverse the change to ensure that the same currency applies for all
quotations, or delete all other quotations that have the same source,
type and number from the quotation table.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message OILQU003 indicates that there is an issue with changing the currency for a quotation because there are already existing entries in the system that are associated with the current currency. This typically occurs in the context of sales and distribution (SD) or logistics processes where quotations are managed.
Cause: The error arises when you attempt to change the currency of a quotation that already has associated line items or entries in the system. The existing entries are likely tied to the original currency, and SAP does not allow the currency to be changed if it would lead to inconsistencies in the data.
Solution: To resolve this error, you can consider the following approaches: Check Existing Entries: Review the existing entries associated with the quotation. You can do this by navigating to the quotation in question and checking the line items or related documents. Create a New Quotation: If changing the currency
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