If you want to Add IFC Code in Voucher Optional Field, follow these steps:
Step 1: Go to the Administration menu, then select Configuration and click on Voucher Series Configuration.
Step 2: Choose the voucher type, select the series, and then click on Voucher Configuration.
Step 3: Enter the number of optional fields you want, then click on Configure.
Step 4: Write the Field Name IFC Code in 3 place, save the configuration, and save the page.
Step 5: Enter a transaction in that series for which you enabled the voucher optional field after selecting the party, the option will appear.