If Settlement Details are not working in one Voucher Series, follow these steps:
Step 1: Go to Administration select Configuration, and click on Voucher Series Configuration.
Step 2: Select the Voucher Type then choose the series in which you want to enable Settlement Details.
Step 3: Toggle Y for Enable Settlement Details, then click on Configure. Add a tag account for settlement, write captions, and save.
Step 4: If you are using POS in this series, click on Configure Advanced POS. Enable the settlement window and configure it.
Step 5: Now, enter the voucher after filling in all the details. When you save, the Settlement window will appear, where you can add your amount.