My chatbot calls a flow for "list rows present in a table" to do an inventory search which works well as long as the part number doesn't contain any letters, but when the part number starts with a letter it throws an error (see images attached to this post for specific error). I made sure that the chatbot is passing in a "string" variable and verified that it is identifying it as a string in the flow also so why is it throwing the error if a letter is present? I thought a string variable would accept any characters regardless of type. Any help with this would be greatly appreciated.