Solution : https://service.sap.com/sap/support/notes/1171957 (SAP Service marketplace login required)
Key words :
user-defined field reason, runtime error its_template_not_found - template, template interpretation failed, customer fields defined, relevant support package, customer field, error page, terms its_template_not_found, business objects, bid invitation
Related Notes :
| 1238894 | Template SAPLBBP_PDH_CUF 210 in BBPSOCO01 does not exist |
| 1173255 | Template interpretation failed. Template does not exist (2) |