Calling a custom package from IBY_FD_EXTRACT_EXT_PUB

Hi,

Our customer is using its own formatting through a PL/SQL package in 11i. After upgrade to R 12.1.3, it is very difficult to achieve the same through ETEXT template.

As we know that Oracle has provided extensibility package IBY_FD_EXTARCT_EXT_PUB to generate additional XML tags. But I would like to know if we can call a custom package from that extension package?

If anyone has done it, I would appreciate the example.

The package which we would like to call, it only takes payment batch id and generates a formatted flat file in a particular UTL path with a particular name.