Can the transactionId in ocpp1.6 be adjusted to be of type LONG

[makf-fly]

This approach allows compatibility with Integer. In real-world business scenarios, transaction IDs may become insufficient when using Integer

[goekay]

transaction IDs may become insufficient

is this a hypothetical scenario or something you face?

[makf-fly]

"Handling int is relatively more troublesome.
long can use timestamps or similar methods, which gives you a lot more flexibility / forgiveness."