I am having some issues creating what I thought would be a fairly simple rotating roster which tags users on Slack.

The Zapier looks something like this:

1. Trigger: Every Week
2. Get or Set a Value (Assigns a value to a key called “Week”)
3. Lookup Spreadsheet Row in Google Sheets (Searches a “Week” column for a number matching the value stored in the “Week” Key from the previous step.)
4. Send Channel Message in Slack (Tags the staff who are rostered on that week according to the spreadsheet)
5. Increment Value (Increase the “Week” key by 1, so that when it triggers the following week it searches and tags the users for that week)
6. Set Value If - This is my problem step.

Once the value of the key reaches 9 I want it to re-set the value to 1. This is because the rotating roster only accounts for 8 weeks before it needs to go back to the beginning and start over. However, in the Set Up Action step for this I have the “Previous Value - Only set the value if the stored value matches this” set to 9.

I can confirm that the stored value is definitely 9 by reviewing the output in the “Get or Set a Value Step”. I have also confirmed it by adding a Lookup Table step afterwards.

Despite all this I am still receiving an error saying:

The app returned `{"message":"Stored value does not match previous value."}

Please help!