There are four main reasons why this can happen:
- The vote is too new. Content on WhereTheyStand is updated daily, but not in real-time. For a vote to show up, it must first be put on the Parliament website and then ingested into WhereTheyStand — all of which takes time.
- Something went wrong. Sometimes an error occurs when a vote is being ingested. A non-standard name might have been used for a party, or the House might have voted on multiple bills at once. This can delay the showing of a vote or bill on WhereTheyStand. This is more likely to occur in the period soon after a vote because the Hansard that the vote is pulled from is still in a draft state and has not been tidied up.
- There was no party or personal vote. Votes in Parliament start out as a voice vote — members answer a question with "Aye" or "No". Any member present can then call for a further (i.e. party or personal vote) to be held. If nobody does this, then there is no record over who voted which way and Hansard simply records the bill has having been read a first, second, or third time. In these cases, there is no vote information to display on WhereTheyStand. For more information, see Standing Orders 140 through 155.
- Vote(s) occurred in a previous Parliament. Currently, WhereTheyStand only has data from the 51st, 52nd and 53rd Parliaments (elected in 2014 and 2017, respectively). The import success rate is also a lot higher for more recent votes than it is for older votes.