Hello, I knew I had an open ticket where I discussed this with our Product and technology teams before, I just had to locate it. We have discussed this before and are continuing to investigate how to go forward. The X1 value is a non-GDSN, 1WS value that does not normally cause issues if a 1WS/IM supplier sends it to a 1WS/IM recipient. We run into errors when a 1WS supplier sends it to an external data pool recipient since it is not a GDSN value. If that is what you have done here, I recommend you select another value other than X1 and X2 and republish.
