No. Training and employment history have different evidentiary roles. The actual qualifying period cannot be purchased through a course.
Use accurate dates and duties
Do not treat the course completion date as the start of employment that did not occur.
Identify costs for entity documents, foreign employment records, technical document preparation, translations, government fees, travel, and any professional review. Expensive training can be relevant evidence without proving that the resulting knowledge meets L-1B, while application and travel costs remain separate planning items. The expense companies waste is buying a purchased expert declaration before doing the internal work; an examiner gives far more weight to commit history and design documents than to a letter from someone who has never seen the system. Procedure registers, project files and internal training records cost nothing to retrieve and often answer the question a new course was expected to answer. Budget separately for the items that cannot be avoided: certified copies, translations of records held in another language, retrieval of payroll history covering the qualifying foreign year, official charges checked against the current published schedule, and professional fees under a written scope.