2LIS_03_BX - Stock initialization at Warehouse Number level (LGNUM field)

My situation is the following:

I would like to have Warehouse Number (LGNUM) as an additional characteristic for stock initialization.

The 2lis_03_bf (stock movements) has the organization levels like Plant (Werks), Storage Location (LGORT) and also the Warehouse Number (LGNUM). So this last field is available for stock movements analysis.

The 2lis_03_bx doesn´t has the Warehouse Number field (LGNUM) as a result for the extraction, even though the extraction structure MC03BX0 has it.

Do you know how can I achieve the goal of having the Stock overview analysis on Warehouse Number level and not only Plant and Storage Location?

Thank you in advance for your time.

Best regards,

Hugo Gonçalves