Create a new Refill Logic object called ‘[T01] Prepaid card refill logic’.

Select File->New->Refill Logic

Add a Usage Refill logic branch. Name it ‘Prepaid card refill’

Set the Refill Item Class to ‘[T01]Prepaid Card’. Set the Usage Identifier to ‘Refill’.

Add a Flat rating operator. Set the fixed amount to ‘Refill amount’.

Verify the refill logic.

Save the Refill Logic in the Database.

Select Catalog T01 and click Save.