I can't call my tributaries to war.

[Rooster69xx]

Sometimes I don't have the option to call my tributaries to war. What is the reason for this?

[Adolf Rozenberg]

What exactly type of tribitary do you have?

[Adolf Rozenberg]

If you have tribitary STATE, he can't be called to a war

[Rooster69xx]

I used the extort tributary status cassus belli. Usually i can call them to war but sometimes it won't let me

[Adolf Rozenberg]

Hello! there is restrictions to call to arms interaction:
1 Faction rebellion leaders cannot call in allies, except for claimant rebellions.
2 When fighting a fellow vassal, can only call in other rulers with the same liege. (Exception: if the "fellow vassal" is a faction rebellion against you, can call allies from other realms!)
3 Cannot call vassals of your enemy, except in "revolt against tyranny" wars
4 Cannot call allies into an offensive war in which a ruler has a non-aggression pact with the defender.
5 Can call both a liege and their vassal, if you're allied with both, but it only works properly if you call the liege first.

Did I answer your question?

[Adolf Rozenberg]

You ofc cannot call allies if you joined someone else war (or this is a faction war via decision)