That fact alone does not decide the case. Describe the actual knowledge and work.
Avoid an invented secrecy test
L-1B does not universally require unique or secret information. Use genuine evidence rather than assuming knowledge must never be shared.
A retroactively created manual can be useful context, but should be labelled as a current summary rather than presented as a contemporaneous training record if it was not. Do not submit sensitive information carelessly; explain confidential systems at an appropriate level while still making the knowledge intelligible. Start with a knowledge map: identify the company product or process, what the employee knows, how that knowledge was acquired, and why the proposed American duties require it. Preserve records such as training materials, project histories, internal role descriptions, patents or technical documents where appropriate, and affidavits from people with direct knowledge. L-1B concerns special knowledge of the organization’s product and its application, or advanced knowledge of its processes or procedures, rather than travel frequency or generic expertise. Avoid replacing every meaningful detail with an unexplained claim of confidentiality; discuss suitable supporting evidence and secure handling with the reviewer.