Enable this feature allows user to enter and post invoice numbers exceed 20 characters for vendor invoice. If you have customized code to extend the invoice number, simply enable this feature, and it will function seamlessly. However, if you don't have customized code and want to use this feature correctly, please contract Microsoft to enable another flight "EnableEdtStringDatabaseStringLengthAttributeInComputation". This additional flight ensures that datas are not truncated during the invoicing process.