Urgent Help on error 400 in express checkout (/v2/checkout/orders)

[codejoin]

Hi all,

where do i get correlation id meaning  for error 400 in express checkout?

I did a card credit payment. Works on Sandbox but not in Production:

Error: /v2/checkout/orders returned status: 400 (Corr ID: 144710f7d1f40)

Thank you