Send Message to User Limitations

Today I received a question from a customer who wanted to send “Large” message to all XenApp users in the farm. They asked me what the maximum number of characters was that you can send to a user. I honestly did not have a clue and answered to the client that I was not aware of any limitation but that I did not have any problems even with longer messages. The customer was happy with my answer and did send its “Large” message to their XenApp 6 sessions.

The question got stuck in my mind and I decided I had to find out if there were limitations. So I prepared a 1000 character sentence and send it with Citrix Delivery Console, result was the message popped up to the session as it supposed to. So I tried a 5000 character message and it did not pop-up.

  • 1000 characters,No problems both CDC as Send-XASessionMessage cmdlet
  • 2000 characters,No problems both CDC as Send-XASessionMessage cmdlet
  • 3000 characters,No problems both CDC as Send-XASessionMessage cmdlet
  • 4000 characters,No problems both CDC as Send-XASessionMessage cmdlet
  • 5000 characters, both CDC as Send-XASessionMessage cmdlet the message did not arrive.

After some narrowing down,  the maximum character in a message send with:

  • Citrix Delivery Console   = 4055
  • Send-XASessionMessage= 4094

I’m not sure why the limit is not the same, but that the conclusion I ended up with. So if you send a message to your user, Keep it short 😉

Cheerio!

 

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