System Variable 967: Allow to Manually Adjust VAT Amount on Expense Entries in Status 40

Use this System Variable to determine if the VAT amount on approved Expense Entries can still be manually adjusted.

This System Variable is disabled by default. When it is enabled, you can manually adjust the VAT amount of Expense Entries that are already in Status 40 or approved status. You can manually adjust the approved Expense Entry's VAT amount by clicking Manually Set VAT on the Voucher Line Details tab in the sub-grid of Finance & Administration > Creditors > Creditor Invoices.

If it is not enabled and you try to manually adjust the VAT amount of an approved Expense Entry, you will be prompted with the following error message:
System variable 967 must be enabled to use this feature.

It may be necessary to perform a refresh when modifying System Variable values.