I'm only trying to update the value of one column for an item in a different list. But when I use the Update Item action, the workflow suspends and I get the error "The query cannot be completed because the number of lookup columns it contains exceeds the lookup column threshold."

I'm unable to remove the number of lookup columns in that list because they're all vital. Is there a workaround? I've never used the Web Service action - can I update the list item through that instead? If so, what's the syntax?

Additionally, my company has not approved Office 365 actions which hinders me more.