Actual (OpEx & CapEx) spend is loaded monthly (more in specific months if adjustments are made to the ledger after the regular load). In one previous company, I loaded actual spend for OpEx weekly, but pushed to Prod monthly.
Budget (OpEx & CapEx) is loaded once. In cases of a restate, budget is loaded again.
In a few past experiences, forecast is loaded in periods 3, 4, 6, 7, 8, and 9. Project forecast was more frequently completed, but not managed in any way by the TBMO nor loaded into TBMO tools.
For Cloud providers...it depends. In one case, we were loading daily as a means of supplementing the absence of a tool like Cloudability. In most cases, I expected a monthly refresh would be sufficient since a separate Cloud management tool (eg Cloudability) should be deployed.