Binding variables for Extensible Flexfields in Order Management

Summary:

I try to calculate the credit limit value of the customer using Extensible Flexfields, but the parameter value is not accepted from the following query.
Can you please share the list of binding variables for Extensible Flexfields in Order Management?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Oracle Fusion Cloud Applications 24D (11.13.24.10.0)

Code Snippet (add any code snippets that support your topic, if applicable):

SELECT to_number(sum(REM_AUTH_AMOUNT))
FROM FUSION.AR_CUST_CREDIT_AUTHORIZATION
WHERE AUTHORIZATION_STATUS = 'OPEN'
AND SALES_ORDER != :{PARAMETER.DocumentNumber}
AND CUST_ACCOUNT_ID =