3824844 - Error: "EINVALID - CHAIN CODER321F" when testing property with Galileo / Apollo GDS

I am trying to enter a discount code / preference for a specific hotel property in the Corporate Discounts section, but when I click on test property, I get an error message saying "EINVALID - CHAIN CODER321F". The GDS property ID is correct and the hotel exists and displays in Concur search results.

When testing hotel property with Galileo / Apollo property ID, an error occurs , KBA , CON-SRV-TRV-ADM-IDH , Import Hotel Discounts , CON-CA , Cross Applications , CON-MOB-TRV-HTL , Hotel , CON-SRV-TRV-APO , TWS Test (Apollo & Gal) , Problem