Clarify what evidence is actually missing before spending on additional training. A new credential does not necessarily address the specialized-knowledge claim or other L requirements. Compare the two things money can buy here, because usually only one of them is missing. Training buys knowledge the applicant may already possess; document preparation buys proof of knowledge the applicant demonstrably possesses but has never written down.
Spend according to the evidence question
Ask what the existing records establish and which genuine facts need support. Separate training costs, professional review and official charges. No training purchase should be treated as a guarantee of classification or approval.
Work out which of those gaps is the real one before approving any spending. Ask counsel to name the specific fact the file cannot currently establish, then ask what would establish it. Often the answer is an afternoon of a senior colleague's time, spent describing the implementation and signing a statement about it, rather than a course fee.
Where a credential genuinely is absent and the receiving role depends on holding it, that is a business decision about the job rather than a filing strategy, and it should be priced as one. Keep official charges, professional review and any training in three separate lines, since blending them hides which part of the budget actually buys evidence.