CRMXIF_PARTNER_SAVE, how to fill the creation date of the business partner

Hi,

we are migrating from a legacy system to CRM 5.0. We have the problem that the creation date of the migrated business partners is always set to the day of the migration. The customer wants that we also migrate the creation dates of the legacy system. Is there a way to do this using CRMXIF_PARTNER_SAVE or is a correction program needed that corrects this date after migration?

This problem is really going on my nerves as it also creates problems with the validity dates of relations, address usages, ...

I hope you can help me.

Kind regards,

Timo