| Note: The prefix value itself, once added, cannot be changed. If incorrect, the prefix must be deleted, along with the validation rule and type. |
Edit a validation rule from the Card Companies Details page
To edit the validation rule and type for a card number prefix, proceed as follows:
1.Open the Card Company Details page.
2.In the Add Prefix section, click 
on the row of the prefix whose validation rule and type you want to change. The Validation Rules field and Card Number Prefix Validation Type list box then become editable.
3.When finished, click 
to update the information.
4.Click 
to save the information and return to the previous page
5.Click the 
to cancel the action
| Important: Clicking the  button will delete the record. These is no undo option available. |
Edit a validation rule from the Card Prefix list page
To edit the validation rule and type for a card number prefix, proceed as follows:
1.Open the Card Number Prefix list page.
2.Click on the row of the prefix whose validation rule and type you want to change. The Card Number Prefix Details page opens.
3.Click to save the information and return to the previous page.
Edit a validation rule from the Terminal Details page
To edit the validation rule and type for a card number prefix, proceed as follows:
1.Open the Terminal Details page and navigate to the Card Management tab.
2.In the Card Number Prefixes section, click on the row of the prefix whose validation rule and type you want to change. The Validation Rules field and Card Number Prefix Validation Type list box then become editable.
3.When finished, click 
to update the information.
4.Click 
to cancel the action
5.Click to save the information and return to the previous page
