function deployAndFundCampaign(
    uint32 holdingPeriodInSeconds,
    address targetToken,
    address rewardToken,
    uint256 rewardPPQ,
    address campaignAdmin,
    uint256 startTimestamp,
    address alternativeWithdrawalAddress,
    uint256 initialRewardAmount,
    uint256 uuid
) external payable returns (address campaign) {
    if (campaignAdmin == address(0)) revert ZeroAddress();
    if (targetToken == address(0) || rewardToken == address(0)) revert ZeroAddress();
    if (holdingPeriodInSeconds == 0) revert InvalidParameter();

    // No check that initialRewardAmount > 0
    // ...
}
// Add to deployAndFundCampaign function
if (initialRewardAmount == 0) revert ZeroRewardAmount();
error ZeroRewardAmount();
