Creating Text for Customer Master

There are custom Text id and description (eg. ZAFF 'Affiliate Note') to be created for each type of customer(Sold-to, Ship-to,Bill-to,Payer).

I am working on a inbound interface using custom function module, which is customized from IDOC_INPUT_DEBITOR. When the new customer will be created in SAP, how to create these text for each type of customer?

Any suggession will be helpful.

Revert back if you have any doubts.