Issue:
For study, content of the field was changed from "x" to "y". It is shown correctly in PharmaCM.
However, when preparing a submission and clicking "Export to ST" for the submission, the submission ST XML still sends the old name of the field.
Resolution:
When someone has added this new field in Disclose > Administration > Codes, you have to do the "Refresh codes cache" and the new value is included in the STSubmission which gets sent to the external website.