Sending odd number of bytes

Why I’m not able to send odd number of bytes with an AT command in p2p mode? Even number works fine.

For example:
“at+send=lorap2p:12” works perfectly
“at+send=lorap2p:123” doesn’t work, ERROR: 2 (“Invalid parameter in the AT command.”)

Thanks.

Because it’s not a number, it’s a hex string, so 12 is sending the number 18 in decimal.