[InTeL_cOrE_i7]

Code i used:
new pname[MAX_PLAYER_NAME], string[22 + MAX_PLAYER_NAME];
GetPlayerName(playerid, pname, sizeof(pname));
format(string, sizeof(string), "{CCCCCC}>>JOIN: {99FF33}%s {CCCCCC}has Joined the server", pname);
SendClientMessageToAll(-1, string);

What is wrong:
it send the message, but it looks like this,
and it must look like this, i used SendClientMessage(playerid, -1, "{CCCCCC}>>JOIN: {99FF33}[UF]ic3_cr3am {CCCCCC}has Joined the server"); Just to show u what it must look like

The Players name must be in green, colour code, {99FF33} and the other part of the message, in grey, colour code, {CCCCCC}

[InTeL_cOrE_i7]

Help me

[Basssiiie]

You have "string[22 + MAX_PLAYER_NAME]".
That's way too few characters to support that whole string. That's why it's cut off, there's no more space in the string.

[Facerafter]

Try increasing the size of the string.

pawn Code:

new pname[MAX_PLAYER_NAME], string[128 + MAX_PLAYER_NAME];

[InTeL_cOrE_i7]

wow thx guys, it worked, rep+ for you...

[Guest123]

pawn Code:

new str[128];
GetPlayerName(playerid, str, sizeof(str));
format(str, sizeof(str), "{CCCCCC}>>JOIN: {99FF33}%s {CCCCCC}has Joined the server", str);
SendClientMessageToAll(-1, str);

EDIT: they faster than me LOLOL