Hey all :)

Looking for CPQ experts here, we are hitting this error while running the test method, inserting a Quote Line Item:

CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY, SBQQ.QuoteLineAfter: execution of AfterInsert caused by: System.DmlException: Update failed. First exception on row 0 with id a800j0000008fOtAAI; first error: FIELD_CUSTOM_VALIDATION_EXCEPTION, Line : Cant update the subscription type on an amendment.: [] 

Any ideas?

Much appreciated in advance,

Regards,
Manuel Reina