I have a peculiar problem with the BB Messenger and PIN messaging to one particular person. The funny thing is she doesn't have any problem with the other contacts and so do I.

On PIN message, I can receive but can't send but only to this particular person.

Any suggestion?

It's possible he/she may have blocked incoming PINs via Options>Security Options>Firewall. The "she" you mentioned is not the person whom you're trying to send the PIN to, right?

Welcome to BlackBerryForums!

sounds like someone put an end to another's annoyances.

Wirelessly posted (7130e)

Why don't the two of you try deleting each other from BB messenger and then one of you try readding the other. That may clear up the problem.

I've had a problem with a BB user on a different carrier that could not seem to receive my BB Messenger invite. By reversing it and letting him send the invite to me everything was straightened out. Odd, but perhaps having her send the invite to you would help. Just make sure you're in her address book with your PIN in the proper contact field.