I have created a custom dragon shout using spell effects from other shouts, creating my own words of power and doing my own vocal for the shout, but when i try to use console commands to add it to my character it gives the response "Item "xxxxxxx" not found for parameter word of power". I am wondering if i have missed a step or something in creating the shout. Any help is appreciated.

Assuming this is an incorrect ID input:

The ID has to match the load order of the mod index. The mod index is the first 2 digits of the FormID.
example

if it's seventh in the load order, and the editor ID is 0200FF7A, you instead use player.addshout 0700FF7A

[00] Skyrim.ESM
[01] Update.ESM
[02-FE] Other
[FF] YourSave.ess

Seventh mod would be [06] as load indices are offset by -1.

It's working now. Thanks for the help!