SRL Archive - OSR Help

I want a procedure to repeat until either the inventory is full or until isuptext returns a specific value.

Basically:

Repeat
 ...
Until(P07_invfull) OR Until(P07_isuptextmulticustom(['whatever']);

The last line of the code is what I'm trying to get to work. I've tried a few different variants, but none seem to work.
Is this possible and if so, how can I code it correctly?

repeat
...
until((P07_invfull) OR (P07_isuptextmulticustom(['whatever'])));

That should work.