How to extend the mapping table when a new field is added to the data model?

Hi Experts,

I have added a new field to the entity PCTR and run the structures.. My new field was created in structure /MDG?_SX_0G_PCTR.

My understanding is that I have to map it in the service mapping for USMDZ6_0G_PCTR.

How do I get it in structure MDGF_PRFT_CTR_RPLCTN_REQ_PRFT to be able to map it?

Thanks

Riaan