Participants in an obligations relationship are equal.⁵⁶ This means that no party should have an unjustified advantage or be placed in a disadvantageous position solely due to their role in the relationship (creditor or debtor).

Example: A consumer enters into a contract with a retailer for the purchase of a product. – The contract includes a clause allowing the retailer to unilaterally change the price without notifying the consumer. Such a clause places the consumer in an unequal position and is contrary to the principle of equality. The consumer has the right to demand fair and balanced contractual terms.