Hello,    In order to be able to help you , we need to understand the exact setup of the financials company these transactions are sent through.   Supplier Invoice POST operation usually returns 'Do you want the system to recalculate the amount(s) in the 'Cost' column?   when used Supplier's >  VAT Calculation Mode set : "NET" instead of  "VAT Settings" and payload is missing Financial / Post Period fields, therefore, we've recommended you to include "postPeriod" and "financialPeriod". Once these fields added you informed us about different series of the errors, meaning there are another company settings related issues these need to be aligned.  There are certain configurations should be controlled in the Financials ERP therefore please review previous post for those points and follow the instructions shared in API incidents - Troubleshooting and reporting   In the first place, please manually create a supplier invoice by using the same values sent via API, in the issue occurred Company UI and send us a print screen.(developersupport@visma.com) We've also sent you information via the web ticket you've created. We're waiting for your feedback to proceed further. Thanks. ... View more

Hello,    Please be informed that Developers Visma.net community is for Visma.Net Financials ERP API and it is International therefore communication is done in English. Please see the following article :  API incidents - Troubleshooting and reporting > "Reporting the issue" section and inform us about your API transaction made with the Visma.net ERP API Endpoints <https://integration.visma.net/API-index/> in detail. Thanks. ... View more