First find which CU you have installed and from there onwards look for future CU's, for example if you have CU6 installed and you are getting this error, start looking for platform updates from CU7, in the search criteria on the browser if you type Cumulative updates for NAV 2013 r2 you will get a list of all the Cumulative updates search for 'NAV closes when user clicks on Variant code' and search will take you to the error instance and you will get the CU no. download the CU and follow the instructions to install the CU.
↧