Custom Transaction Source from Oracle Order Management

Summary:

I created a Custom Transaction Type and got it assigned to the AR invoice created from Order Management through Posttransformation rule.

I have also created a Custom Transaction Source , which has the above custom transaction type.

But when interfacing Orders to AR, Though the system is considering the Custom Transaction type but not the Custom Source.

It is considering the DOO source only.

Please let me know how can I get the custom transaction Source also assigned.

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