Service Builder: Creating a new offering returns "Bad Request (400)"DescriptionIn Service Builder, when a user tries to create a new offering for a service, they will see a "Bad Request (400)" popup when submitting the new offering. The offering will also have a banner error "An exception occurred while submitting the producer." - Steps to Reproduce - 1) Open up Service Builder with a user that has the proper role (service_admin, service_author)2) Click on "Create a business service" or "Create a technical service"3) Fill out the appropriate details for the Details and Team tabs (minimum - add a name to the new service)4) Go to the Manage Offerings tab, and click on the "New" button in the offerings list5) Fill out the details to create a new offering (minimum - add a name to the new offering)6) Click "Save & Close" to submit and attempt to create a new offeringRelease or EnvironmentInstances originally provisioned with version Madrid or earlier, and upgraded to Rome or later.CauseWhen creating an offering through Service Builder, the Additional Contracts field in the Operations tab has a dependency on a table included in the Service Level Management - Contract Management Integration plugin. The Service Level Management - Contract Management Integration plugin was introduced in New York and is automatically installed on instances provisioned with New York or later. For instances originally provisioned with Madrid or earlier, this plugin is an optional install and will need to be installed manually post-upgrade to Rome or later. ResolutionInstall the Service Level Management - Contract Management Integration (com.snc.sla.contract2) plugin if the plugin is not already installed on the instance.