PDH and PDU are used by different credential systems. Do not assume credits transfer one-for-one unless the receiving credential authority says they do.
The difference between PDH and PDU
The practical difference is the governing definition and where the credit is accepted. PDH and PDU are used by different credential systems. Do not assume credits transfer one-for-one unless the receiving credential authority says they do.
Do not assume automatic conversion
Keep the original unit or credit label from the completion record. Convert only when the receiving licensing board or certification program tells you how it treats the activity.
What to record
Save the provider, activity title, date, original credit unit, amount, category, certificate, and the authority rule you relied on. That makes later audits and multi-credential use easier to verify.