End User Rebate Process

Hello,

We use both 867/webadi to load rebates, we are getting ship to address from distributors which finally goes in Bill to address columns while creating batch. We were told bill to address is Mandatory for Chrm and cannot create batch without bill to address.  Is this true statement ?

Business wants to store both bill/ship to address, can we do the same, if so how or what is the industry standard, as these are indirect customer address which will have only party records, so not sure if we can have both and map the same at party level, as I can see only one address at party level.