New GL Budget rate ledger

Hello

We have 2 seperate ledgers maintained for Leading ledger & Budget rate. (New GL)

I am aware that 0FI_GL_14 will extract all line item from leading ledger only.

Which Datasource should we use for Budget Rate?

SAP suggests that we should use 3FI_GL_XX_SI extractors for enhancement package 3 and above. Please refer to below link

General Ledger Accounting (New): Line Items of Any Ledger (Generated) - SAP Documentation

but we are not able to generate datasource as system is throwing error that "Extractors for general ledger documents are not yet supported". Is there any settings we need to maintain?

Any other suggestions on this?

Thanks

Sunil