Imbalances occur when the allocated delivery amount is greater or less than the allocated receipt amount. Each day, imbalances are added together and grouped by Contract/Zone/ OIA. They are calculated on a daily basis and held at the transaction level. If a party is in a Due To position, they are long on the pipeline and the pipeline owes the shipper gas. If a party is in a Due From position, they are short and owe the pipeline gas. Imbalances are subject to change until allocations are closed for the production month.

With ePipeMaster, users can monitor their imbalance balance from monthly summary to each daily transaction. One way to mitigate imbalances during the month is through the use of make-up transactions. Once the production month has ended customers have the option to trade their eligible imbalances. Cash out occurs after the trading period has ended for the month. Once the trading period has ended, imbalances are cashed out and then reflected on the invoice. ePipeMaster support flexible cash out or carry over rule so that each business unit can customize it according to its own tariff.