Calculation of elasticity in APC-RPO (Weekly x Daily)

Hello

In the project we are working now, the customer has doubts about the quality of the elasticities due to the following situation:

1) APC-RPO is the week level.

2) So the historical data (prices, volumes, promotions, stock breaks) must also be loaded in the week level.

3) The customer has a situation where several items are on promotion at a certain day of the week, but this promotional event occurs every week.

4) According to this information, all weeks will be marked as promotion.

5) Thus, the APC-RPO can correctly calculate the elasticity? Or is need to load the historical data at the day