RCSBI010 and Customer header fields

Hello experts!

Using PCSD0003, we have enhance our BOM header adding some additional fields in the header SAPLCSDI 1100 is correctly created. Now, to fill all these inforamtion, we want to use a direct input using RCSBI010 report. But, we have seen that when the BI is being created, the fields for this screen is not being correctly filled.

Do you know why? Why we can't see our customer fields on SM35?

Thank you so much,

Best regards,

Rebeca