Solution : https://service.sap.com/sap/support/notes/806169 (SAP Service marketplace login required)
Key words :
symptom external shipping, terms e-mail, source code correction, correction instructions, documents triggers, sapconnect trace, internal error, so_object_mime_get exception, smartform reason, empty line
Related Notes :
| 671260 | Internal error: SO_OBJECT_GET_MIME Exception: 2 |
| 487754 | Error sending mail: SO_OBJECT_MIME_GET |