First identify the actual knowledge and evidence requirements. A new course or certificate does not automatically establish qualifying knowledge or the required foreign employment.
Separate professional development from case preparation
Clarify the review, relevant documentation and official charges. Training may have a business purpose, but planned learning should not be presented as already acquired expertise in the immigration evidence. Sequence it: establish first what the existing knowledge is and how it is documented, then decide whether any purchase adds evidence.
A course bought this month cannot make last year's work qualifying, and an invoice for it sitting in the file invites the reading that the knowledge was assembled for the application. Where training genuinely serves the business, run it on the business calendar and describe it as future development, plainly labelled as not yet completed. Hypothetical example: an employer offers to enrol an electronic submissions publisher in a certification programme to strengthen a transfer file; the certificate would say something about the field and nothing about the employer's own publishing conventions, which is the knowledge the case turns on.
Budget instead for the internal time needed to retrieve procedure revisions, training records and completed assessments, because that retrieval is usually the real expense and it competes with operational work. Ask who inside the company can authorise release of training records, since that permission is often the step that stalls while everyone waits on the invoice question.