Unable to adjust and add it to existing credit invoice

Hi ,

We have a requirement to credit multiple invoices (Same header information) and consolidate into one single credit invoice.

But when we are trying to adjust invoices through Adjust Selected Bill Lines page and add to existing invoice system is throwing an error as follows.

Error:

Line Adjustments for VAT Invoices can only be placed on a new Invoice. (12500,249).The Invoice being adjusted is a VAT Invoice and line adjustments on VAT invoices can't be placed on existing Invoices. Line adjustments can only be placed on new Invoices. Select all the lines to be adjusted and place the adjustments on a new Invoice