we are using SRM 5.0 in the extended classical szenario.
Here we are facing a problem in transaction BBP_POC (Process PO):
When we try to add a new line to a PO we get the following error message "Unit ST is not created in language EN".
Although the first line was created with ST in EN.
Afterwards it is not possible at all to change the PO. We get the error message in every screen.
Thanks and regards